Nonstop flight route between Thorne Bay, Alaska, United States and Riverside, California, United States:
Departure Airport:
(55°41'17"N by 132°32'12"W)
Arrival Airport:
(33°52'50"N by 117°15'33"W)
Distance from KTB to RIV:
1,674.19 miles (2,694.33 km)
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Jump to:
- About this route
- KTB Airport Information
- RIV Airport Information
- Facts about KTB
- Facts about RIV
- Map of Nearest Airports to KTB
- List of Nearest Airports to KTB
- Map of Furthest Airports from KTB
- List of Furthest Airports from KTB
- Map of Nearest Airports to RIV
- List of Nearest Airports to RIV
- Map of Furthest Airports from RIV
- List of Furthest Airports from RIV
About this route:
A direct, nonstop flight between Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States and March Air Reserve Base (RIV), Riverside, California, United States would travel a Great Circle distance of 1,674 miles (or 2,694 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 Thorne Bay Seaplane Base and March Air Reserve Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KTB / |
| Airport Name: | Thorne Bay Seaplane Base |
| Location: | Thorne Bay, Alaska, United States |
| GPS Coordinates: | 55°41'17"N by 132°32'12"W |
| Area Served: | Thorne Bay, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from KTB |
| More Information: | KTB Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | RIV / KRIV |
| Airport Name: | March Air Reserve Base |
| Location: | Riverside, California, United States |
| GPS Coordinates: | 33°52'50"N by 117°15'33"W |
| View all routes: | Routes from RIV |
| More Information: | RIV Maps & Info |
Facts about Thorne Bay Seaplane Base (KTB):
- Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
- Because of Thorne Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Thorne Bay 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.
- The closest airport to Thorne Bay Seaplane Base (KTB) is Hollis Clark Bay Seaplane Base (HYL), which is located only 14 miles (23 kilometers) SSW of KTB.
- The furthest airport from Thorne Bay Seaplane Base (KTB) is Port Alfred Airport (AFD), which is located 10,618 miles (17,088 kilometers) away in Port Alfred, South Africa.
Facts about March Air Reserve Base (RIV):
- The closest airport to March Air Reserve Base (RIV) is Flabob Airport (RIR), which is located only 11 miles (18 kilometers) NW of RIV.
- In December 1948, Twelfth Air Force and March AFB were assigned from Tactical Air Command to Continental Air Command, established on 1 December 1948.
- The March Field Airfest, also known as Thunder Over the Empire, is a biennial air show held at March.
- The furthest airport from March Air Reserve Base (RIV) is Pierrefonds Airport (ZSE), which is located 11,461 miles (18,445 kilometers) away in Saint-Pierre, Réunion.
- The Army quickly set about establishing the new air field.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 14.06 miles (22.63 km) SSW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States |     |
| 2 | 22.34 miles (35.96 km) WSW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 3 | 25.34 miles (40.79 km) NNW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 4 | 27.90 miles (44.90 km) WSW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 5 | 29.09 miles (46.82 km) WNW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 6 | 35.17 miles (56.60 km) WNW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 7 | 35.19 miles (56.63 km) SSW | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 8 | 37.27 miles (59.99 km) NW | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 9 | 38.70 miles (62.28 km) SW | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 39.68 miles (63.87 km) SE | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 11 | 41.60 miles (66.95 km) SE | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 12 | 53.80 miles (86.58 km) SE | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 13 | 55.40 miles (89.16 km) N | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| 14 | 58.51 miles (94.17 km) SE | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 15 | 60.66 miles (97.62 km) NW | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,618.12 miles (17,088.17 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,611.06 miles (17,076.80 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,609.57 miles (17,074.40 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,536.12 miles (16,956.21 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,529.16 miles (16,945.00 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,521.15 miles (16,932.11 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,464.33 miles (16,840.66 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,451.86 miles (16,820.59 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,430.04 miles (16,785.47 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,425.95 miles (16,778.90 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,414.65 miles (16,760.71 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,413.17 miles (16,758.33 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,403.14 miles (16,742.18 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 14 | 10,400.12 miles (16,737.33 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,391.75 miles (16,723.87 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.42 miles (18.39 km) NW | Flabob Airport (RIR) | Riverside/Rubidoux, California, United States | |
| 2 | 11.73 miles (18.87 km) WNW | Riverside Municipal Airport (RAL) | Riverside, California, United States | |
| 3 | 14.90 miles (23.98 km) N | San Bernardino International Airport (SBT) | San Bernardino, California, United States | |
| 4 | 14.90 miles (23.98 km) N | Norton Air Force Base (SBD) | San Bernardino, California, United States | |
| 5 | 16.96 miles (27.30 km) SE | Hemet-Ryan AirportRyan Field (HMT) | Hemet, California, United States | |
| 6 | 22.58 miles (36.35 km) WNW | Chino Airport (CNO) | Chino, California, United States | |
| 7 | 23.03 miles (37.07 km) WNW | LA/Ontario International Airport (ONT) | Ontario (near Los Angeles), California, United States | |
| 8 | 23.63 miles (38.02 km) E | Banning Municipal Airport (BNG) | Banning, California, United States | |
| 9 | 29.26 miles (47.09 km) WNW | Cable Airport (CCB) | Upland, California, United States | |
| 10 | 30.55 miles (49.17 km) WSW | MCAS El Toro (NZJ) | Santa Ana, California, United States | |
| 11 | 33.29 miles (53.57 km) WNW | Brackett Field (POC) | La Verne, California, United States | |
| 12 | 37.73 miles (60.72 km) WSW | John Wayne Airport (SNA) | Santa Ana, California, United States | |
| 13 | 41.33 miles (66.51 km) W | Fullerton Municipal Airport (FUL) | Fullerton, California, United States | |
| 14 | 43.34 miles (69.74 km) E | Palm Springs International AirportPalm Springs Army Airfield (PSP) | Palm Springs, California, United States | |
| 15 | 46.08 miles (74.16 km) S | Bob Maxwell Field (Oceanside Municipal Airport) (OCN) | Oceanside, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,461.07 miles (18,444.75 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 2 | 11,460.25 miles (18,443.43 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 3 | 11,457.24 miles (18,438.59 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 4 | 11,436.56 miles (18,405.32 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 11,309.80 miles (18,201.31 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 11,197.00 miles (18,019.77 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 11,182.75 miles (17,996.85 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 11,153.99 miles (17,950.56 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,070.60 miles (17,816.36 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 11,033.54 miles (17,756.71 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 11 | 11,027.30 miles (17,746.68 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 12 | 11,022.03 miles (17,738.20 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 11,001.53 miles (17,705.20 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,991.17 miles (17,688.52 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,985.96 miles (17,680.14 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |