Nonstop flight route between Seattle, Washington, United States and Derry, Northern Ireland, United Kingdom:
Departure Airport:
(47°31'48"N by 122°18'6"W)
Arrival Airport:
(55°2'34"N by 7°9'42"W)
Distance from BFI to LDY:
4,413.94 miles (7,103.53 km)
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Jump to:
- About this route
- BFI Airport Information
- LDY Airport Information
- Facts about BFI
- Facts about LDY
- Map of Nearest Airports to BFI
- List of Nearest Airports to BFI
- Map of Furthest Airports from BFI
- List of Furthest Airports from BFI
- Map of Nearest Airports to LDY
- List of Nearest Airports to LDY
- Map of Furthest Airports from LDY
- List of Furthest Airports from LDY
About this route:
A direct, nonstop flight between King County International Airport (BFI), Seattle, Washington, United States and City of Derry Airport (LDY), Derry, Northern Ireland, United Kingdom would travel a Great Circle distance of 4,414 miles (or 7,104 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 King County International Airport and City of Derry Airport, 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 King County International Airport and City of Derry Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | BFI / KBFI |
| Airport Names: |
|
| Location: | Seattle, Washington, United States |
| GPS Coordinates: | 47°31'48"N by 122°18'6"W |
| Area Served: | Seattle, Washington |
| Airport Type: | Public |
| Elevation: | 21 feet (6 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from BFI |
| More Information: | BFI Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | LDY / EGAE |
| Airport Names: |
|
| Location: | Derry, Northern Ireland, United Kingdom |
| GPS Coordinates: | 55°2'34"N by 7°9'42"W |
| Area Served: | Derry, United Kingdom |
| Operator/Owner: | Derry City Council |
| Airport Type: | Public |
| Elevation: | 23 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from LDY |
| More Information: | LDY Maps & Info |
Facts about King County International Airport (BFI):
- The furthest airport from King County International Airport (BFI) is Tôlanaro Airport (FTU), which is located 10,775 miles (17,341 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to King County International Airport (BFI) is Renton Municipal Airport (RNT), which is located only 5 miles (8 kilometers) ESE of BFI.
- Boeing Field had scheduled passenger flights on West Coast Airlines Douglas DC-9s and Fairchild F-27s to Idaho, Oregon, Washington, northern California, western Montana, northern Utah and to Calgary.
- In addition to being known as "King County International Airport", another name for BFI is "Boeing Field".
- Because of King County International Airport's relatively low elevation of 21 feet, planes can take off or land at King County International Airport 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.
- It is in the National Plan of Integrated Airport Systems for 2011–2015, which called it a primary commercial service airport.Federal Aviation Administration records say the airport had 34,597 passenger boardings in calendar year 2008, 35,863 in 2009 and 33,656 in 2010.
- Passenger terminal, Boeing Field
- King County International Airport (BFI) has 2 runways.
- The August 1946 OAG shows 24 United Airlines weekday departures, 10 Northwest and two or three Pan Am DC-3s to Juneau via Annette Island.
Facts about City of Derry Airport (LDY):
- Because of City of Derry Airport's relatively low elevation of 23 feet, planes can take off or land at City of Derry Airport 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 "City of Derry Airport", another name for LDY is "Londonderry/Eglinton Airport[1]".
- At the end of 2008, British Airways, operated by Loganair as a franchise agreement, ceased the Glasgow International route which had operated for 30 years, following the loss in July 2008 of their public service obligation route to Dublin.
- City of Derry Airport handled 384,973 passengers last year.
- Passenger numbers in 2013 were 384,973, a 3.3% decrease compared with 2012.
- In January 2009 the council appointed Albert Harrison, the former head of Belfast International Airport, as the new manager of the airport.
- The furthest airport from City of Derry Airport (LDY) is Ryan's Creek Aerodrome (SZS), which is located 11,838 miles (19,051 kilometers) away in Stewart Island, New Zealand.
- City of Derry Airport (LDY) currently has only 1 runway.
- 2010 saw the commencement of a new route to Faro with Ryanair, the airport's second scheduled international destination.
- The closest airport to City of Derry Airport (LDY) is Belfast International Airport (BFS), which is located 46 miles (74 kilometers) SE of LDY.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 4.76 miles (7.66 km) ESE | Renton Municipal Airport (RNT) | Renton, Washington, United States |     |
| 2 | 5.62 miles (9.04 km) S | Seattle–Tacoma International Airport (SEA) | SeaTac (near Seattle and Tacoma), Washington, United States | |
| 3 | 7.04 miles (11.33 km) NNW | Kenmore Air Harbor Seaplane Base (LKE) | Seattle, Washington, United States | |
| 4 | 15.65 miles (25.19 km) N | Kenmore Air (KEH) | Kenmore, Washington, United States | |
| 5 | 21.77 miles (35.04 km) W | Bremerton National Airport (PWT) | Bremerton, Washington, United States | |
| 6 | 22.23 miles (35.78 km) SW | Tacoma Narrows Airport (TIW) | Tacoma, Washington, United States | |
| 7 | 26.00 miles (41.85 km) N | Paine Field (PAE) | Everett, Washington, United States | |
| 8 | 28.30 miles (45.55 km) SSW | McChord Field/McChord AFB (TCM) | Tacoma, Washington, United States | |
| 9 | 33.78 miles (54.36 km) SSW | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| 10 | 43.22 miles (69.55 km) NNW | Jefferson County International AirportPort Townsend Army Airfield (TWD) | Port Townsend, Washington, United States | |
| 11 | 44.54 miles (71.69 km) WSW | Sanderson Field (SHN) | Shelton, Washington, United States | |
| 12 | 47.89 miles (77.07 km) SW | Olympia Regional Airport (OLM) | Olympia, Washington, United States | |
| 13 | 52.75 miles (84.90 km) NNW | A.J. Eisenberg Airport (ODW) | Oak Harbor, Washington, United States | |
| 14 | 55.59 miles (89.46 km) ESE | Easton State Airport (ESW) | Easton, Washington, United States | |
| 15 | 56.81 miles (91.43 km) NW | Sequim Valley Airport (SQV) | Sequim, Washington, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,775.32 miles (17,341.16 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,706.76 miles (17,230.83 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,621.55 miles (17,093.68 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,592.12 miles (17,046.32 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,590.11 miles (17,043.08 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,588.22 miles (17,040.05 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 7 | 10,570.73 miles (17,011.90 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 8 | 10,564.37 miles (17,001.66 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 9 | 10,557.66 miles (16,990.87 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 10 | 10,554.58 miles (16,985.90 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 11 | 10,550.10 miles (16,978.71 km) SE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 12 | 10,544.57 miles (16,969.80 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 13 | 10,540.24 miles (16,962.83 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 14 | 10,533.70 miles (16,952.30 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 15 | 10,530.85 miles (16,947.72 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 46.10 miles (74.19 km) SE | Belfast International Airport (BFS) | Belfast, Northern Ireland, United Kingdom | |
| 2 | 46.68 miles (75.12 km) W | Donegal Airport (CFN) | Carrickfinn, Ireland | |
| 3 | 48.61 miles (78.24 km) SSW | Enniskillen/St Angelo Airport (ENK) | Enniskillen, Co Fermanagh, Northern Ireland, United Kingdom | |
| 4 | 56.69 miles (91.24 km) NE | Islay Airport (ILY) | Islay, Scotland, United Kingdom | |
| 5 | 59.11 miles (95.13 km) ESE | George Best Belfast City Airport (BHD) | Belfast, Northern Ireland, United Kingdom | |
| 6 | 64.14 miles (103.23 km) ENE | Campbeltown Airport (CAL) | Campbeltown, Scotland, United Kingdom | |
| 7 | 77.94 miles (125.43 km) SW | Sligo Airport (SXL) | Strandhill (near Sligo), Ireland | |
| 8 | 78.77 miles (126.77 km) NNE | Colonsay Airport (CSA) | Colonsay, Inner Hebrides, Scotland, United Kingdom | |
| 9 | 101.27 miles (162.97 km) N | Tiree Airport (TRE) | Tiree, Scotland, United Kingdom | |
| 10 | 102.69 miles (165.26 km) SW | Ireland West Airport Knock (NOC) | Knock, Ireland | |
| 11 | 106.06 miles (170.69 km) ENE | Glasgow-Prestwick Airport (PIK) | Prestwick (near Glasgow), Scotland, United Kingdom | |
| 12 | 109.78 miles (176.67 km) N | Coll Island Airport (COL) | Coll, Scotland, United Kingdom | |
| 13 | 117.67 miles (189.38 km) SSE | Dublin Airport (DUB) | Dublin, Ireland | |
| 14 | 121.28 miles (195.18 km) ENE | Glasgow International Airport (GLA) | Glasgow, Scotland, United Kingdom | |
| 15 | 121.39 miles (195.35 km) ESE | Isle of Man Airport (IOM) | Ronaldsway, Isle of Man, United Kingdom | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,837.96 miles (19,051.30 km) SSE | Ryan's Creek Aerodrome (SZS) | Stewart Island, New Zealand | |
| 2 | 11,808.83 miles (19,004.42 km) SSE | Invercargill Airport (IVC) | Invercargill, New Zealand | |
| 3 | 11,796.55 miles (18,984.66 km) SSE | Dunedin International Airport (DUD) | Dunedin, Otago, New Zealand | |
| 4 | 11,740.64 miles (18,894.68 km) SSE | Alexandra Aerodrome (ALR) | Alexandra, New Zealand | |
| 5 | 11,736.54 miles (18,888.08 km) S | Oamaru Airport (OAM) | Oamaru, North Otago, New Zealand | |
| 6 | 11,721.19 miles (18,863.37 km) SSE | Queenstown Airport (ZQN) | Queenstown, New Zealand | |
| 7 | 11,706.27 miles (18,839.37 km) SSE | Wanaka Airport (WKA) | Wanaka, New Zealand | |
| 8 | 11,691.29 miles (18,815.27 km) S | Richard Pearse Airport (Timaru Airport) (TIU) | Timaru, New Zealand | |
| 9 | 11,688.11 miles (18,810.14 km) SSE | Milford Sound Airport (MFN) | Milford Sound, New Zealand | |
| 10 | 11,665.74 miles (18,774.14 km) S | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 11 | 11,657.96 miles (18,761.63 km) S | Glentanner Aerodrome (GTN) | Mount Cook, New Zealand | |
| 12 | 11,648.44 miles (18,746.31 km) S | Mount Cook Airport (MON) | Mount Cook, New Zealand | |
| 13 | 11,638.42 miles (18,730.18 km) S | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 14 | 11,626.79 miles (18,711.46 km) S | Fox Glacier Aerodrome (FGL) | Fox Glacier, New Zealand | |
| 15 | 11,580.86 miles (18,637.55 km) S | Hokitika Airport (HKK) | Hokitika, New Zealand | |