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Flights from Boston to Washington D.C.

Boston to Washington D.C. Flight Overview

The distance between Boston and Washington D.C. is approximately 639.48km. The average flight time between Boston and Washington D.C. is 1 hour 50 minutes. According to Trip.com data, travel demand is highest in July. October is generally the cheapest month to book.

Cheapest one-way
£38
American Airlines American Airlines BOS-WAS 1h 44m · Direct Mon, Sep 14
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Cheapest return
£72
American Airlines American Airlines BOS-WAS 1h 47m · Direct Thu, Sep 17 - Tue, Sep 22
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Recommended airlines
American Airlines American Airlines Cheapest · From £38 Jetblue Airways Jetblue Airways Most booked
Best time to book
January
Cheapest
July
Peak season for travel
Route details
639.48km
Flight distance
1h 50m
Average flight time

Find the cheapest direct flight options from Boston to Washington D.C. over the next three months. Book one-way tickets from £38 and round-trip tickets from £72.

      • Cheapest nonstop
        BOS 06:00
        1h 47m
        Direct
        DCA 07:47
        Boston - Washington D.C. | Thu, Sep 17 | American Airlines
        DCA 06:00
        1h 44m
        Direct
        BOS 07:44
        Washington D.C. - Boston | Tue, Sep 22 | American Airlines
        £72 £100
        28% off
        28% off
        £100 £72
      • BOS 19:43
        1h 46m
        Direct
        DCA 21:29
        Boston - Washington D.C. | Tue, Oct 6 | American Airlines
        DCA 06:59
        1h 47m
        Direct
        BOS 08:46
        Washington D.C. - Boston | Wed, Oct 14 | American Airlines
        £72 £100
        28% off
        28% off
        £100 £72
      • BOS 19:43
        1h 46m
        Direct
        DCA 21:29
        Boston - Washington D.C. | Wed, Oct 14 | American Airlines
        DCA 06:59
        1h 47m
        Direct
        BOS 08:46
        Washington D.C. - Boston | Thu, Oct 22 | American Airlines
        £72 £100
        28% off
        28% off
        £100 £72
      • BOS 06:10
        2h 5m
        Direct
        DCA 08:15
        Boston - Washington D.C. | Sat, Aug 29 | American Airlines
        DCA 06:59
        1h 45m
        Direct
        BOS 08:44
        Washington D.C. - Boston | Wed, Sep 2 | American Airlines
        £74
        26% off
        £100 £74
      • BOS 15:45
        2h 6m
        Direct
        DCA 17:51
        Boston - Washington D.C. | Tue, Aug 18 | Delta Air Lines
        DCA 11:50
        1h 40m
        Direct
        BOS 13:30
        Washington D.C. - Boston | Wed, Aug 26 | Delta Air Lines
        £75
        25% off
        £100 £75
      • BOS 09:15
        1h 54m
        Direct
        DCA 11:09
        Boston - Washington D.C. | Sun, Sep 6 | Delta Air Lines
        DCA 18:35
        1h 59m
        Direct
        BOS 20:34
        Washington D.C. - Boston | Sun, Sep 6 | Delta Air Lines
        £75
        25% off
        £100 £75
      • BOS 07:25
        1h 58m
        Direct
        DCA 09:23
        Boston - Washington D.C. | Sat, Aug 22 | Delta Air Lines
        DCA 17:45
        1h 51m
        Direct
        BOS 19:36
        Washington D.C. - Boston | Sat, Aug 29 | Delta Air Lines
        £75
        25% off
        £100 £75
      • BOS 10:33
        1h 40m
        Direct
        DCA 12:13
        Boston - Washington D.C. | Wed, Aug 19 | American Airlines
        DCA 06:59
        1h 45m
        Direct
        BOS 08:44
        Washington D.C. - Boston | Thu, Aug 20 | American Airlines
        £75
        25% off
        £100 £75
      • BOS 19:44
        1h 46m
        Direct
        DCA 21:30
        Boston - Washington D.C. | Wed, Sep 16 | American Airlines
        DCA 06:00
        1h 44m
        Direct
        BOS 07:44
        Washington D.C. - Boston | Tue, Sep 22 | American Airlines
        £76
        24% off
        £100 £76
      • BOS 06:00
        1h 44m
        Direct
        DCA 07:44
        Boston - Washington D.C. | Thu, Aug 27 | American Airlines
        DCA 06:00
        1h 43m
        Direct
        BOS 07:43
        Washington D.C. - Boston | Mon, Aug 31 | American Airlines
        £77
        23% off
        £100 £77
      • BOS 13:00
        17h 25m
        1 stop
        WAS 14:00
        Boston - Washington D.C. | Tue, Aug 18 | Normal Airline
        WAS 15:00
        6h
        Direct
        BOS 16:00
        Washington D.C. - Boston | Thu, Aug 20 | Normal Airline
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      • Cheapest nonstop
        BOS 06:00
        1h 44m
        Direct
        DCA 07:44
        Boston - Washington D.C. | Mon, Sep 14 | American Airlines
        £38 £56
        32% off
        32% off
        £56 £38
      • BOS 18:00
        1h 58m
        Direct
        DCA 19:58
        Boston - Washington D.C. | Sat, Oct 10 | Delta Air Lines
        £40 £56
        28% off
        28% off
        £56 £40
      • BOS 21:45
        1h 58m
        Direct
        DCA 23:43
        Boston - Washington D.C. | Mon, Aug 24 | Delta Air Lines
        £41 £56
        27% off
        27% off
        £56 £41
      • BOS 20:05
        2h
        Direct
        DCA 22:05
        Boston - Washington D.C. | Sat, Sep 5 | Delta Air Lines
        £42
        25% off
        £56 £42
      • BOS 21:45
        1h 58m
        Direct
        DCA 23:43
        Boston - Washington D.C. | Wed, Aug 26 | Delta Air Lines
        £42
        25% off
        £56 £42
      • BOS 21:45
        1h 58m
        Direct
        DCA 23:43
        Boston - Washington D.C. | Wed, Aug 19 | Delta Air Lines
        £42
        25% off
        £56 £42
      • BOS 21:45
        1h 50m
        Direct
        DCA 23:35
        Boston - Washington D.C. | Mon, Sep 14 | Delta Air Lines
        £42
        25% off
        £56 £42
      • BOS 21:45
        1h 50m
        Direct
        DCA 23:35
        Boston - Washington D.C. | Tue, Sep 8 | Delta Air Lines
        £43
        23% off
        £56 £43
      • BOS 10:45
        1h 53m
        Direct
        DCA 12:38
        Boston - Washington D.C. | Thu, Oct 15 | Delta Air Lines
        £43
        23% off
        £56 £43
      • BOS 06:00
        1h 56m
        Direct
        DCA 07:56
        Boston - Washington D.C. | Thu, Oct 1 | Delta Air Lines
        £43
        23% off
        £56 £43
      • BOS 13:00
        17h 25m
        1 stop
        WAS 14:00
        Boston - Washington D.C. | Tue, Aug 18 | Normal Airline
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Airlines operating flights from Boston to Washington D.C.

You can choose from 3 airlines flying from Boston to Washington D.C., including Jetblue Airways, Delta Air Lines and United Airlines. American Airlines currently offers the cheapest direct ticket on this route.
Jetblue Airways logo Jetblue Airways
Delta Air Lines logo Delta Air Lines
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Boston to Washington D.C. according to previous 12 months data from Trip.com.

Trip.com price insights on flights from Boston to Washington D.C.

What is the cheapest month for one-way flights from Boston to Washington D.C.?

The average one way ticket price paid by Trip.com users from Boston to Washington D.C. in each month over the past 12 months.

Based on Trip.com data, the cheapest month to fly from Boston to Washington D.C. is January, with an average price of £104. The most expensive month is usually June, with average prices reaching £162.

£162
£133
£104
£75
    Cheapest
  • £145
    Aug
  • £124
    Sep
  • £131
    Oct
  • £113
    Nov
  • £119
    Dec
  • £104
    Jan
  • £114
    Feb
  • £126
    Mar
  • £154
    Apr
  • £120
    May
  • £162
    Jun
  • £159
    Jul

What is the cheapest month for return flights from Boston to Washington D.C.?

Average price of return flights from Boston to Washington D.C. purchased by Trip.com users by month over the past 12 months

Based on Trip.com's historical data, November is often the cheapest month for fly from Boston to Washington D.C., with an average price of £176. June is usually the most expensive period, with prices averaging as high as £278.

£278
£227
£176
£125
    Cheapest
  • £261
    Aug
  • £262
    Sep
  • £180
    Oct
  • £176
    Nov
  • £187
    Dec
  • £190
    Jan
  • £184
    Feb
  • £270
    Mar
  • £261
    Apr
  • £220
    May
  • £278
    Jun
  • £213
    Jul

During the Summer bank holiday, which day is cheapest to fly from Boston to Washington D.C.?

Data is based on the lowest one-way price from Boston to Washington D.C. during Summer bank holiday in the Trip.com database over the past three days.

Summer bank holiday is scheduled for Aug 31. The lowest flight fares from Boston to Washington D.C. are available on Aug 28, starting from £56.

£122
£89
£56
£23
  • £122
    27
    Aug
  • £56
    28
  • £98
    29
  • £86
    30
  • £86
    31
  • £66
    1
    Sep
  • £60
    2

Flight FAQs

  • Which airlines offer the cheapest flights from Boston (BOS) to Washington D.C. (WAS)?

    Based on Trip.com data, American Airlines offers one-way fares as low as £38 on Cheapest nonstop routes (e.g. BOS to DCA on Mon, Sep 14), while American Airlines offers Cheapest nonstop round-trips from £72 departing on Thu, Sep 17 and returning on Tue, Sep 22.
  • At the moment, you can catch a direct flight from Boston to Washington D.C. with the following airlines, including: Jetblue Airways Delta Air Lines United Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 1 hour 50 minutes to fly from Boston (BOS) to Washington D.C. (WAS).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 162 flight per week flying from Boston to Washington D.C.. You can check the weekly schedule for popular airlines on this route below: United Airlines: S/M/T/W/T/F/S -- UA1734 (05:52)
  • To find best deals on flights from Boston to Washington D.C., you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Sep 14, with one-way flights priced at just £38.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Washington D.C. travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Washington D.C. is October, when demand for travel is lower.
  • After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Boston to Washington D.C. on August 20, 2026 with Jetblue Airways, with prices starting at £34.
  • You can land at any one of the following hubs in Washington D.C., with Boston Logan International Airport to Ronald Reagan Washington National Airport (BOS-DCA) is by far the most common option on this route: Ronald Reagan Washington National Airport (DCA) Dulles International Airport (IAD).
  • The time difference between Washington D.C. and Boston is 0m.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Boston to Washington D.C. is £114. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Boston to Washington D.C. is £191. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter Boston and Washington D.C., choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.
  • Jetblue Airwaysare the most popular budget airlines flying from Boston to Washington D.C.. Check baggage, seat and payment fees before comparing the final price.

More Flight Itineraries

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please visit the customer support pages.