About this route:

A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and Ireland West Airport Knock (NOC), Knock, Ireland would travel a Great Circle distance of 4,066 miles (or 6,543 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Roundup Airport and Ireland West Airport Knock, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Roundup Airport and Ireland West Airport Knock. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

IATA / ICAO Codes: RPX / KRPX
Airport Name: Roundup Airport
Location: Roundup, Montana, United States
GPS Coordinates: 46°28'30"N by 108°32'35"W
Area Served: Roundup, Montana
Operator/Owner: City of Roundup & Musselshell County
Airport Type: Public
Elevation: 3490 feet (1,064 meters)
# of Runways: 2
View all routes: Routes from RPX
More Information: RPX Maps & Info

Arrival Airport Information:

IATA / ICAO Codes: NOC / EIKN
Airport Names:
  1. Ireland West Airport Knock
  2. Horan International Airport
  3. Aerfort Iarthar Éireann
Location: Knock, Ireland
GPS Coordinates: 53°54'37"N by 8°49'6"W
Area Served: Connacht, Ireland
Airport Type: Public
Elevation: 665 feet (203 meters)
# of Runways: 1
View all routes: Routes from NOC
More Information: NOC Maps & Info

Facts about Roundup Airport (RPX):

  • The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
  • The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
  • Roundup Airport (RPX) has 2 runways.

Facts about Ireland West Airport Knock (NOC):

  • Because of Ireland West Airport Knock's relatively low elevation of 665 feet, planes can take off or land at Ireland West Airport Knock at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
  • By 1988, over 100,000 passengers had passed through.
  • It was voted Ireland's best regional airport in 2006 and 2009 by the Chambers of Commerce of Ireland.
  • During September 2011 Ryanair celebrated its 4 millionth passenger through the airport, while Lufthansa announced it would be commencing weekly flights to Düsseldorf in May 2012.
  • In recent years Ryanair has grown operations and it is the largest airline to serve the airport with 14 scheduled routes.
  • The furthest airport from Ireland West Airport Knock (NOC) is Ryan's Creek Aerodrome (SZS), which is located 11,934 miles (19,206 kilometers) away in Stewart Island, New Zealand.
  • In November 2011 Ryanair announced flights to Beauvais-Tillé, Frankfurt Hahn, Bergamo-Orio al Serio and Girona-Costa Brava from March 2012.
  • In addition to being known as "Ireland West Airport Knock", other names for NOC include "Horan International Airport" and "Aerfort Iarthar Éireann".
  • Ireland West Airport Knock (NOC) currently has only 1 runway.
  • Ireland West Airport Knock handled 665,000 passengers last year.
  • In 2005 the airport changed its name to Ireland West Airport Knock.
  • The closest airport to Ireland West Airport Knock (NOC) is Sligo Airport (SXL), which is located 27 miles (44 kilometers) NNE of NOC.

Map of Nearest Airports to Roundup Airport:

List of Nearest Airports to Roundup Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
146.10 miles (74.19 km) SBillings Logan International Airport (BIL)Billings, Montana, United StatesView Billings Logan International Airport on a map Set BIL as origin Airport Set BIL as destination Airport Get more information about Billings Logan International Airport
259.02 miles (94.99 km) NWLewistown Municipal Airport (LWT)Lewistown, Montana, United StatesView Lewistown Municipal Airport on a map Set LWT as origin Airport Set LWT as destination Airport Get more information about Lewistown Municipal Airport
395.49 miles (153.67 km) NEJordan Airport (JDN)Jordan, Montana, United StatesView Jordan Airport on a map Set JDN as origin Airport Set JDN as destination Airport Get more information about Jordan Airport
4105.84 miles (170.33 km) WSWMission Field (LVM)Livingston, Montana, United StatesView Mission Field on a map Set LVM as origin Airport Set LVM as destination Airport Get more information about Mission Field
5126.53 miles (203.63 km) EMiles City Airport (MLS)Miles City, Montana, United StatesView Miles City Airport on a map Set MLS as origin Airport Set MLS as destination Airport Get more information about Miles City Airport
6133.88 miles (215.46 km) WSWBozeman Yellowstone International Airport (BZN)Bozeman, Montana, United StatesView Bozeman Yellowstone International Airport on a map Set BZN as origin Airport Set BZN as destination Airport Get more information about Bozeman Yellowstone International Airport
7137.05 miles (220.56 km) SYellowstone Regional Airport (COD)Cody, Wyoming, United StatesView Yellowstone Regional Airport on a map Set COD as origin Airport Set COD as destination Airport Get more information about Yellowstone Regional Airport
8139.98 miles (225.28 km) SSESheridan County Airport (SHR)Sheridan, Wyoming, United StatesView Sheridan County Airport on a map Set SHR as origin Airport Set SHR as destination Airport Get more information about Sheridan County Airport
9143.48 miles (230.90 km) WNWMalmstrom Air Force Base (GFA)Great Falls, Montana, United StatesView Malmstrom Air Force Base on a map Set GFA as origin Airport Set GFA as destination Airport Get more information about Malmstrom Air Force Base
10150.20 miles (241.73 km) NEGlasgow International Airport (GGW)Glasgow, Montana, United StatesView Glasgow International Airport on a map Set GGW as origin Airport Set GGW as destination Airport Get more information about Glasgow International Airport
11150.36 miles (241.97 km) WNWGreat Falls International Airport (GTF)Great Falls, Montana, United StatesView Great Falls International Airport on a map Set GTF as origin Airport Set GTF as destination Airport Get more information about Great Falls International Airport
12153.79 miles (247.50 km) NNWHavre City-County Airport (HVR)Havre, Montana, United StatesView Havre City-County Airport on a map Set HVR as origin Airport Set HVR as destination Airport Get more information about Havre City-County Airport
13163.70 miles (263.45 km) WHelena Regional Airport (HLN)Helena, Montana, United StatesView Helena Regional Airport on a map Set HLN as origin Airport Set HLN as destination Airport Get more information about Helena Regional Airport
14175.30 miles (282.12 km) SWYellowstone Airport (WYS)West Yellowstone, Montana, United StatesView Yellowstone Airport on a map Set WYS as origin Airport Set WYS as destination Airport Get more information about Yellowstone Airport
15175.96 miles (283.18 km) SWorland Municipal Airport (WRL)Worland, Wyoming, United StatesView Worland Municipal Airport on a map Set WRL as origin Airport Set WRL as destination Airport Get more information about Worland Municipal Airport

Map of Furthest Airports from Roundup Airport:

List of Furthest Airports from Roundup Airport:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
110,534.71 miles (16,953.93 km) SSESir Gaëtan Duval Airport (RRG)Rodrigues Island, MauritiusView Sir Gaëtan Duval Airport on a map Set RRG as origin Airport Set RRG as destination Airport Get more information about Sir Gaëtan Duval Airport
210,479.36 miles (16,864.85 km) SSEPierrefonds Airport (ZSE)Saint-Pierre, RéunionView Pierrefonds Airport on a map Set ZSE as origin Airport Set ZSE as destination Airport Get more information about Pierrefonds Airport
310,476.57 miles (16,860.37 km) SSESir Seewoosagur Ramgoolam International Airport (MRU)Plaisance, MauritiusView Sir Seewoosagur Ramgoolam International Airport on a map Set MRU as origin Airport Set MRU as destination Airport Get more information about Sir Seewoosagur Ramgoolam International Airport
410,454.31 miles (16,824.54 km) SSERoland Garros Airport (RUN)St Denis, Réunion, FranceView Roland Garros Airport on a map Set RUN as origin Airport Set RUN as destination Airport Get more information about Roland Garros Airport
510,433.23 miles (16,790.61 km) SETôlanaro Airport (FTU)Tôlanaro, MadagascarView Tôlanaro Airport on a map Set FTU as origin Airport Set FTU as destination Airport Get more information about Tôlanaro Airport
610,330.91 miles (16,625.95 km) SEAmpanihy Airport (AMP)Ampanihy, MadagascarView Ampanihy Airport on a map Set AMP as origin Airport Set AMP as destination Airport Get more information about Ampanihy Airport
710,261.65 miles (16,514.48 km) SEMananjary Airport (MNJ)Mananjary, MadagascarView Mananjary Airport on a map Set MNJ as origin Airport Set MNJ as destination Airport Get more information about Mananjary Airport
810,233.41 miles (16,469.03 km) SEFianarantsoa Airport (WFI)Fianarantsoa, MadagascarView Fianarantsoa Airport on a map Set WFI as origin Airport Set WFI as destination Airport Get more information about Fianarantsoa Airport
910,132.24 miles (16,306.22 km) SEManja Airport (MJA)Manja, Menabe, MadagascarView Manja Airport on a map Set MJA as origin Airport Set MJA as destination Airport Get more information about Manja Airport
1010,132.23 miles (16,306.21 km) SEAndavadoaka Airport (DVD)Andavadoaka, Toliara province, Atsimo-Andrefana region, MadagascarView Andavadoaka Airport on a map Set DVD as origin Airport Set DVD as destination Airport Get more information about Andavadoaka Airport
1110,116.24 miles (16,280.48 km) SEMorombe Airport (MXM)Morombe, MadagascarView Morombe Airport on a map Set MXM as origin Airport Set MXM as destination Airport Get more information about Morombe Airport
1210,108.66 miles (16,268.28 km) SEToamasino Airport (TMM)Toamasina, MadagascarView Toamasino Airport on a map Set TMM as origin Airport Set TMM as destination Airport Get more information about Toamasino Airport
1310,089.56 miles (16,237.54 km) SEIvato International Airport (TNR)Antananarivo, MadagascarView Ivato International Airport on a map Set TNR as origin Airport Set TNR as destination Airport Get more information about Ivato International Airport
1410,066.19 miles (16,199.92 km) SEMiandrivazo Airport (ZVA)Miandrivazo, MadagascarView Miandrivazo Airport on a map Set ZVA as origin Airport Set ZVA as destination Airport Get more information about Miandrivazo Airport
1510,059.04 miles (16,188.42 km) SESainte Marie Airport (SMS)Île Sainte-Marie, MadagascarView Sainte Marie Airport on a map Set SMS as origin Airport Set SMS as destination Airport Get more information about Sainte Marie Airport

Map of Nearest Airports to Ireland West Airport Knock:

List of Nearest Airports to Ireland West Airport Knock:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
127.07 miles (43.56 km) NNESligo Airport (SXL)Strandhill (near Sligo), IrelandView Sligo Airport on a map Set SXL as destination Airport Set SXL as destination Airport Get more information about Sligo Airport
242.45 miles (68.31 km) SGalway Airport (GWY)Galway, IrelandView Galway Airport on a map Set GWY as destination Airport Set GWY as destination Airport Get more information about Galway Airport
353.68 miles (86.40 km) WNWBelmullet Aerodrome (BLY)Belmullet, IrelandView Belmullet Aerodrome on a map Set BLY as destination Airport Set BLY as destination Airport Get more information about Belmullet Aerodrome
453.99 miles (86.89 km) SSWConnemara Airport (NNR)Inverin, IrelandView Connemara Airport on a map Set NNR as destination Airport Set NNR as destination Airport Get more information about Connemara Airport
558.02 miles (93.38 km) NEEnniskillen/St Angelo Airport (ENK)Enniskillen, Co Fermanagh, Northern Ireland, United KingdomView Enniskillen/St Angelo Airport on a map Set ENK as destination Airport Set ENK as destination Airport Get more information about Enniskillen/St Angelo Airport
664.42 miles (103.68 km) SSWInishmaan Aerodrome (IIA)Inishmaan, IrelandView Inishmaan Aerodrome on a map Set IIA as destination Airport Set IIA as destination Airport Get more information about Inishmaan Aerodrome
765.01 miles (104.62 km) SSWInisheer Aerodrome (INQ)Inisheer, IrelandView Inisheer Aerodrome on a map Set INQ as destination Airport Set INQ as destination Airport Get more information about Inisheer Aerodrome
865.26 miles (105.02 km) SSWInishmore Aerodrome (IOR)Kilronan, Inishmore, IrelandView Inishmore Aerodrome on a map Set IOR as destination Airport Set IOR as destination Airport Get more information about Inishmore Aerodrome
980.65 miles (129.80 km) NNEDonegal Airport (CFN)Carrickfinn, IrelandView Donegal Airport on a map Set CFN as destination Airport Set CFN as destination Airport Get more information about Donegal Airport
1083.60 miles (134.55 km) SShannon Airport (SNN)Shannon (County Clare), IrelandView Shannon Airport on a map Set SNN as destination Airport Set SNN as destination Airport Get more information about Shannon Airport
11102.69 miles (165.26 km) NECity of Derry Airport (LDY)Derry, Northern Ireland, United KingdomView City of Derry Airport on a map Set LDY as destination Airport Set LDY as destination Airport Get more information about City of Derry Airport
12107.36 miles (172.79 km) SEKilkenny Airport (KKY)Kilkenny, IrelandView Kilkenny Airport on a map Set KKY as destination Airport Set KKY as destination Airport Get more information about Kilkenny Airport
13109.66 miles (176.48 km) ESEDublin Airport (DUB)Dublin, IrelandView Dublin Airport on a map Set DUB as destination Airport Set DUB as destination Airport Get more information about Dublin Airport
14116.98 miles (188.26 km) ENEBelfast International Airport (BFS)Belfast, Northern Ireland, United KingdomView Belfast International Airport on a map Set BFS as destination Airport Set BFS as destination Airport Get more information about Belfast International Airport
15123.03 miles (198.00 km) SSWKerry Airport (KIR)Tralee, County Kerry, IrelandView Kerry Airport on a map Set KIR as destination Airport Set KIR as destination Airport Get more information about Kerry Airport

Map of Furthest Airports from Ireland West Airport Knock:

List of Furthest Airports from Ireland West Airport Knock:

RankDistance & DirectionAirport Name & IATA CodeAirport LocationFurther Actions
111,933.91 miles (19,205.72 km) SSERyan's Creek Aerodrome (SZS)Stewart Island, New ZealandView Ryan's Creek Aerodrome on a map Set SZS as destination Airport Set SZS as destination Airport Get more information about Ryan's Creek Aerodrome
211,903.52 miles (19,156.80 km) SSEInvercargill Airport (IVC)Invercargill, New ZealandView Invercargill Airport on a map Set IVC as destination Airport Set IVC as destination Airport Get more information about Invercargill Airport
311,883.56 miles (19,124.69 km) SDunedin International Airport (DUD)Dunedin, Otago, New ZealandView Dunedin International Airport on a map Set DUD as destination Airport Set DUD as destination Airport Get more information about Dunedin International Airport
411,830.40 miles (19,039.13 km) SAlexandra Aerodrome (ALR)Alexandra, New ZealandView Alexandra Aerodrome on a map Set ALR as destination Airport Set ALR as destination Airport Get more information about Alexandra Aerodrome
511,819.07 miles (19,020.90 km) SOamaru Airport (OAM)Oamaru, North Otago, New ZealandView Oamaru Airport on a map Set OAM as destination Airport Set OAM as destination Airport Get more information about Oamaru Airport
611,813.00 miles (19,011.14 km) SQueenstown Airport (ZQN)Queenstown, New ZealandView Queenstown Airport on a map Set ZQN as destination Airport Set ZQN as destination Airport Get more information about Queenstown Airport
711,796.09 miles (18,983.92 km) SWanaka Airport (WKA)Wanaka, New ZealandView Wanaka Airport on a map Set WKA as destination Airport Set WKA as destination Airport Get more information about Wanaka Airport
811,782.10 miles (18,961.40 km) SSEMilford Sound Airport (MFN)Milford Sound, New ZealandView Milford Sound Airport on a map Set MFN as destination Airport Set MFN as destination Airport Get more information about Milford Sound Airport
911,772.98 miles (18,946.73 km) SRichard Pearse Airport (Timaru Airport) (TIU)Timaru, New ZealandView Richard Pearse Airport (Timaru Airport) on a map Set TIU as destination Airport Set TIU as destination Airport Get more information about Richard Pearse Airport (Timaru Airport)
1011,744.83 miles (18,901.42 km) SAshburton Aerodrome (ASG)Ashburton, New ZealandView Ashburton Aerodrome on a map Set ASG as destination Airport Set ASG as destination Airport Get more information about Ashburton Aerodrome
1111,743.98 miles (18,900.06 km) SGlentanner Aerodrome (GTN)Mount Cook, New ZealandView Glentanner Aerodrome on a map Set GTN as destination Airport Set GTN as destination Airport Get more information about Glentanner Aerodrome
1211,734.36 miles (18,884.58 km) SMount Cook Airport (MON)Mount Cook, New ZealandView Mount Cook Airport on a map Set MON as destination Airport Set MON as destination Airport Get more information about Mount Cook Airport
1311,714.19 miles (18,852.12 km) SChristchurch International Airport (CHC)Christchurch, New ZealandView Christchurch International Airport on a map Set CHC as destination Airport Set CHC as destination Airport Get more information about Christchurch International Airport
1411,712.98 miles (18,850.17 km) SFox Glacier Aerodrome (FGL)Fox Glacier, New ZealandView Fox Glacier Aerodrome on a map Set FGL as destination Airport Set FGL as destination Airport Get more information about Fox Glacier Aerodrome
1511,663.13 miles (18,769.94 km) SHokitika Airport (HKK)Hokitika, New ZealandView Hokitika Airport on a map Set HKK as destination Airport Set HKK as destination Airport Get more information about Hokitika Airport