Boston to Washington D.C. flight

Flights from Boston to Washington D.C. start at €67.99 and take 4h 24m at their fastest.

BostonBostonWashingtonWashington
A 4 x 1 segment panorama of the Toledo Skyline in Spain at sunrise. Taken by myself in portrait format with a Canon 5D and 70-200mm f/2.8L lens. On the left Alcázar of Toledo and on the right Cathedral of Toledo.

The Flights from Boston to Washington D.C. starts at €67.99 and takes 4h 24m door to door, run by 7 operators over 653 km, with around 56 departures a day. Fares bottom out about 60 days before departure.

Checked September 10, 2026Priced for September 29, 2026One passenger, all fees included

  • 4h 24mDoor to door
  • 1h 14mMoving
  • €67.99From
  • 160.6 kgCO2
Real services

The cheapest and the fastest on September 29, 2026

Two journeys we can sell today, with the service number each operator files them under.

Cheapest€57.96
  1. Aer Lingus AL620916:521h 14m18:06Boston BOSWashington DCA

Door to door 4h 24mCO2 160.6 kgChanges 0Fixed, no changes

Carriers

Airlines

Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.

Every operator we sell on this corridor. Speed is the carrier's own typical cruising speed, not the average over this route.
OperatorFrom
American Airlines€59.73
JetBlue Airways€59.73
Aer Lingus€57.96
American Eagle Airlines€58.55
United Airlines€57.96
Republic Airways€59.14
Mesa Airlines€57.96

Washington D.C. sits on the water, which usually settles which side of town you want to wake up on. Rooms are not ours to sell.

A hotel room

Rooms within reach of Washington Union Station

Sort by distance from Washington Union Station and you can see which places are ten minutes on foot and which are not.

Search Washington D.C. on Booking.comOr compare on Expedia

Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.

Booking window

When to book Boston to Washington D.C.

The same search run across the whole booking window, so the shape of the curve is visible rather than described.

  1. €59.1490 days
  2. €46.1660 days
  3. €55.0145 days
  4. €59.1430 days
  5. €70.3521 days
  6. €88.6414 days
  7. €112.837 days
  8. €118.143 days
  9. €141.741 days
Cheapest lead time
Fares bottom out around 60 days ahead, at €46.16.
How much it moves
The gap between the cheapest and most expensive lead time is 207 percent. The most expensive point is €141.74, 1 days out.
What that means
Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Day of the week

Which departure day costs least

Median cheapest fare for each weekday, taken across the next three weeks of real prices.

  1. €78.61Sun
  2. €69.17Mon
  3. €67.99Tue
  4. €71.53Wed
  5. €88.64Thu
  6. €82.74Fri
  7. €84.51Sat
Terminals

Where you leave from and where you arrive

The stations, airports and ports each mode on this corridor actually uses.

Boston

Air
  • BOS
  • BED

Washington

Air
  • IAD
  • DCA
The journey

What the journey actually looks like

Direct or connecting, how far the route really runs, and what happens when a connection is missed.

How far it really runs
The route covers 653 km against 634 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
First and last departure
The first service of the day leaves Boston at 06:01 and the last at 20:53, across 56 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
The alternatives

Flights against the other ways to make this journey

The same corridor, door to door, with every mode that runs it.

Door to door means the whole journey, including reaching the terminal and leaving it at the far end. Fares are the cheapest sold on each mode.
ModeDoor to doorMovingAt the endsFromCO2Per day
Flight4h 24m1h 14m3h 10m€67.99160.6 kg56
Train5h 2m4h 18m44m€81.7420.9 kg12

Questions about Boston to Washington D.C.

The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.

How long does the Flight from Boston to Washington D.C. take?

The Flight from Boston to Washington D.C. takes 4h 24m door to door, of which 1h 14m is spent moving. The route runs 653 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.

How much does the Flight from Boston to Washington D.C. cost?

The Flight from Boston to Washington D.C. starts at €67.99 for one passenger, checked on September 29, 2026. A typical fare is €70.35. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.

Who runs the Flight from Boston to Washington D.C.?

7 operators run the Flight from Boston to Washington D.C.: American Airlines, JetBlue Airways, Aer Lingus, American Eagle Airlines, United Airlines. Between them they file around 56 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.

Which terminal does the Flight from Boston to Washington D.C. use?

The Flight from Boston to Washington D.C. leaves from Boston BOS and arrives at Washington DCA. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.

Is the Flight the best way from Boston to Washington D.C.?

The Flight is both the cheapest and the fastest way from Boston to Washington D.C., at €67.99 and 4h 24m door to door, against 1 other modes that also run the corridor. On this route there is no trade to make between the money and the hours.

When should I book the Flight from Boston to Washington D.C.?

Fares for the Flight from Boston to Washington D.C. bottom out around 60 days ahead, at €46.16. The gap between the cheapest and most expensive lead time across the window is 207 percent, measured on September 29, 2026. Booking inside the final week has consistently cost more.

How much CO2 does the Flight from Boston to Washington D.C. produce?

The Flight from Boston to Washington D.C. produces about 160.6 kg of CO2 per passenger over 653 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.

Where these numbers come from

Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.

Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.

Defined in full at Door to door, Fares, The booking window, Carbon

On this page
Every figure above was computed for Boston to Washington D.C. on September 10, 2026: 653 km of route against 634 km in a straight line, 56 services a day, 7 operators, a cheapest fare of €67.99, and 4h 24m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.

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