Nonstop flight route between Roundup, Montana, United States and Friday Harbor, Washington, United States:
Departure Airport:
(46°28'30"N by 108°32'35"W)
Arrival Airport:
(48°32'13"N by 123°0'34"W)
Distance from RPX to FBS:
688.95 miles (1,108.75 km)
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Jump to:
- About this route
- RPX Airport Information
- FBS Airport Information
- Facts about RPX
- Facts about FBS
- Map of Nearest Airports to RPX
- List of Nearest Airports to RPX
- Map of Furthest Airports from RPX
- List of Furthest Airports from RPX
- Map of Nearest Airports to FBS
- List of Nearest Airports to FBS
- Map of Furthest Airports from FBS
- List of Furthest Airports from FBS
About this route:
A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and Friday Harbor Seaplane Base (FBS), Friday Harbor, Washington, United States would travel a Great Circle distance of 689 miles (or 1,109 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 relatively short distance between Roundup Airport and Friday Harbor Seaplane Base, the route shown on this map most likely still appears to be a straight line.
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: | FBS / |
| Airport Names: |
|
| Location: | Friday Harbor, Washington, United States |
| GPS Coordinates: | 48°32'13"N by 123°0'34"W |
| Area Served: | Friday Harbor, Washington |
| Operator/Owner: | Port of Friday Harbor |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from FBS |
| More Information: | FBS Maps & Info |
Facts about Roundup Airport (RPX):
- Roundup Airport (RPX) has 2 runways.
- The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of 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.
Facts about Friday Harbor Seaplane Base (FBS):
- The furthest airport from Friday Harbor Seaplane Base (FBS) is Tôlanaro Airport (FTU), which is located 10,724 miles (17,259 kilometers) away in Tôlanaro, Madagascar.
- Friday Harbor Seaplane Base (FBS) has 2 runways.
- The closest airport to Friday Harbor Seaplane Base (FBS) is Friday Harbor Airport (FRD), which is located only 1 miles (2 kilometers) SSW of FBS.
- Because of Friday Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Friday Harbor Seaplane Base 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.
- In addition to being known as "Friday Harbor Seaplane Base", another name for FBS is "W33".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 46.10 miles (74.19 km) S | Billings Logan International Airport (BIL) | Billings, Montana, United States |     |
| 2 | 59.02 miles (94.99 km) NW | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 3 | 95.49 miles (153.67 km) NE | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 4 | 105.84 miles (170.33 km) WSW | Mission Field (LVM) | Livingston, Montana, United States | |
| 5 | 126.53 miles (203.63 km) E | Miles City Airport (MLS) | Miles City, Montana, United States | |
| 6 | 133.88 miles (215.46 km) WSW | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 7 | 137.05 miles (220.56 km) S | Yellowstone Regional Airport (COD) | Cody, Wyoming, United States | |
| 8 | 139.98 miles (225.28 km) SSE | Sheridan County Airport (SHR) | Sheridan, Wyoming, United States | |
| 9 | 143.48 miles (230.90 km) WNW | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 10 | 150.20 miles (241.73 km) NE | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 11 | 150.36 miles (241.97 km) WNW | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 12 | 153.79 miles (247.50 km) NNW | Havre City-County Airport (HVR) | Havre, Montana, United States | |
| 13 | 163.70 miles (263.45 km) W | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 14 | 175.30 miles (282.12 km) SW | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 15 | 175.96 miles (283.18 km) S | Worland Municipal Airport (WRL) | Worland, Wyoming, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,534.71 miles (16,953.93 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,479.36 miles (16,864.85 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,476.57 miles (16,860.37 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 10,454.31 miles (16,824.54 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,433.23 miles (16,790.61 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,330.91 miles (16,625.95 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,261.65 miles (16,514.48 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,233.41 miles (16,469.03 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,132.24 miles (16,306.22 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 10 | 10,132.23 miles (16,306.21 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 10,116.24 miles (16,280.48 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,108.66 miles (16,268.28 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,089.56 miles (16,237.54 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,066.19 miles (16,199.92 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,059.04 miles (16,188.42 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 1.25 miles (2.02 km) SSW | Friday Harbor Airport (FRD) | Friday Harbor, Washington, United States | |
| 2 | 4.43 miles (7.14 km) ESE | Fishermans Bay/LPS Seaplane Base (LPS) | Lopez Island, Washington, United States | |
| 3 | 6.09 miles (9.80 km) NNE | Westsound Seaplane Base (WSX) | Westsound, Orcas Island, Washington, United States | |
| 4 | 8.43 miles (13.56 km) NW | Roche Harbor Seaplane Base (RCE) | San Juan Island, Washington, United States | |
| 5 | 8.78 miles (14.13 km) ESE | Center Island Airport (CWS) | Center Island, Washington, United States | |
| 6 | 9.90 miles (15.93 km) NE | Rosario Seaplane Base (RSJ) | Orcas Island, Washington, United States | |
| 7 | 12.64 miles (20.35 km) NNE | Orcas Island Airport (ESD) | Eastsound, Washington, United States | |
| 8 | 16.11 miles (25.93 km) E | Anacortes Airport (OTS) | Anacortes, Washington, United States | |
| 9 | 17.56 miles (28.26 km) NW | Bedwell Harbour Water Aerodrome (YBW) | Bedwell Harbour, British Columbia, Canada | |
| 10 | 19.02 miles (30.62 km) WSW | Victoria Inner Harbour Airport (YWH) | Victoria, British Columbia, Canada | |
| 11 | 19.27 miles (31.01 km) WSW | Esquimalt Airport (YPF) | Esquimalt, British Columbia, Canada | |
| 12 | 20.48 miles (32.96 km) WNW | Victoria International Airport (YYJ) | Victoria, British Columbia, Canada | |
| 13 | 20.66 miles (33.25 km) SE | NAS Whidbey Island (NUW) | Oak Harbor, Washington, United States | |
| 14 | 25.04 miles (40.30 km) SE | A.J. Eisenberg Airport (ODW) | Oak Harbor, Washington, United States | |
| 15 | 26.35 miles (42.41 km) NNW | Mayne Island Water Aerodrome (YAV) | Miner's Bay, British Columbia, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,724.34 miles (17,259.11 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,660.23 miles (17,155.93 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,590.74 miles (17,044.10 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,583.53 miles (17,032.50 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 5 | 10,575.95 miles (17,020.31 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,554.40 miles (16,985.61 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 7 | 10,552.45 miles (16,982.48 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 10,547.22 miles (16,974.06 km) SE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 9 | 10,541.90 miles (16,965.49 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 10 | 10,536.15 miles (16,956.24 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,524.81 miles (16,938.01 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 12 | 10,521.82 miles (16,933.19 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,502.17 miles (16,901.56 km) SE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |
| 14 | 10,494.40 miles (16,889.05 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 15 | 10,488.68 miles (16,879.85 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |