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BOS to DCA: distance & flight time
Boston (General Edward Lawrence Logan International Airport) → Washington (Ronald Reagan Washington National Airport)
399 mi
641 km · 346 nm
1h 31m
estimated nonstop flight time
Same time
time difference · heading southwest
See live BOS→DCA fares Phone-only fares on this route — call free
Flight time details
399 miles nonstop takes roughly 1h 31m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- BOS — General Edward Lawrence Logan International Airport · Boston, United States
- DCA — Ronald Reagan Washington National Airport · Washington, 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 BOS
- OWD · Norwood Memorial Airport15 mi away
- BED · Laurence G Hanscom Field16 mi away
- BVY · Beverly Municipal Airport16 mi away
- LWM · Lawrence Municipal Airport25 mi away
Near DCA
Frequently asked questions
How far is BOS from DCA?
The flight distance from Boston (BOS) to Washington (DCA) is 399 miles (641 km, 346 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOS to DCA?
A nonstop flight takes about 1h 31m 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 cheapest way to fly from BOS to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOS–DCA that never appear on search engines, with no booking fees.