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DPA to SEA: distance & flight time
West Chicago (Dupage Airport) → Seattle (Seattle Tacoma International Airport)
1,702 mi
2,739 km · 1,479 nm
3h 48m
estimated nonstop flight time
-2h
time difference · heading northwest
See live DPA→SEA fares Phone-only fares on this route — call free
Flight time details
1,702 miles nonstop takes roughly 3h 48m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- DPA — Dupage Airport · West Chicago, United States
- SEA — Seattle Tacoma International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near DPA
- ORD · Chicago O'Hare International Airport18 mi away
- LOT · Lewis University Airport22 mi away
- PWK · Chicago Executive Airport23 mi away
- MDW · Chicago Midway International Airport27 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is DPA from SEA?
The flight distance from West Chicago (DPA) to Seattle (SEA) is 1,702 miles (2,739 km, 1,479 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DPA to SEA?
A nonstop flight takes about 3h 48m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between West Chicago and Seattle?
Seattle is 2 hours behind West Chicago.
What is the cheapest way to fly from DPA to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DPA–SEA that never appear on search engines, with no booking fees.