Washington Dulles (IAD) to Seattle (SEA)

Distance, flight time and the air traffic controllers who guide you.

Quick answer

Washington Dulles (IAD) to Seattle (SEA) is 2,300 miles in a straight line, about 5h 06m gate to gate. Your flight is handed between 10 air traffic control facilities along the way.

2,300miles
1,999nautical miles
3,701kilometers
~5h 06mestimated flight time
−3 htime change on arrival
Northwestinitial heading

Who handles your flight

Every airliner is passed from one air traffic control facility to the next. On the most direct path, these are the teams that guide you, in order. Weather and traffic can send a flight through other centers, so your actual flight may differ a little.

  1. IADTowerWashington Dulles Tower (IAD)Clears you for takeoffThank them →
  2. PCTTRACONPotomac TRACON (PCT)Guides the climb outThank them →
  3. ZDCCenterWashington ARTCC (ZDC)Takes over at cruising altitudeThank them →
  4. ZOBCenterCleveland ARTCC (ZOB)Keeps you separated en routeThank them →
  5. ZAUCenterChicago ARTCC (ZAU)Keeps you separated en routeThank them →
  6. ZMPCenterMinneapolis ARTCC (ZMP)Keeps you separated en routeThank them →
  7. ZLCCenterSalt Lake City ARTCC (ZLC)Keeps you separated en routeThank them →
  8. ZSECenterSeattle ARTCC (ZSE)Starts your descentThank them →
  9. S46TRACONSeattle TRACON (S46)Lines you up for the approachThank them →
  10. SEATowerSeattle-Tacoma Tower (SEA)Clears you to landThank them →

Flying the other way

Seattle (SEA) to Washington Dulles (IAD)

SEA → S46 → ZSE → ZLC → ZMP → ZAU → ZOB → ZDC → PCT → IAD

About the airports

Washington Dulles International Airport

Washington, DC

Codes: IAD · KIAD

Time zone: Eastern

Control tower: Washington Dulles Tower (IAD)

Thank the tower →

Seattle–Tacoma International Airport

Seattle, WA

Codes: SEA · KSEA

Time zone: Pacific

Control tower: Seattle-Tacoma Tower (SEA)

Thank the tower →

More routes

All flight routes →

How we figure this out

Distance is the great-circle distance between the two airports, the shortest path over the curved Earth. Flight time assumes an average airliner speed of about 500 mph plus about 30 minutes for taxi, takeoff and landing. The list of facilities follows the same path, using each airport's tower and approach control and the FAA's en route center boundaries.

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Common questions

How long is the flight from Washington Dulles (IAD) to Seattle (SEA)?

About 5h 06m gate to gate for the 2,300-mile trip. Flying west, you often fight a headwind, so it can take a little longer.

How far is Washington Dulles (IAD) from Seattle (SEA)?

2,300 miles (1,999 nautical miles, 3,701 km) in a straight line. The path your flight actually takes is usually a little longer.

Which air traffic controllers handle a flight from Washington Dulles (IAD) to Seattle (SEA)?

Usually 10 facilities: Washington Dulles Tower (IAD), Potomac TRACON (PCT), Washington ARTCC (ZDC), Cleveland ARTCC (ZOB), Chicago ARTCC (ZAU), Minneapolis ARTCC (ZMP), Salt Lake City ARTCC (ZLC), Seattle ARTCC (ZSE), Seattle TRACON (S46) and Seattle-Tacoma Tower (SEA). You can thank each one on its own wall at Thank ATC.

Is there a time change between Washington Dulles (IAD) and Seattle (SEA)?

Yes. Seattle (SEA) is 3 hours behind Washington Dulles (IAD).

Updated October 2026

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