Cheap flights from Boston to Washington, D.C. from $83

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Washington, D.C. departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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United Airlines Logo
7:21 pm - 11:13 pm
BOS
-
IAD
3h 52m
1 stop
United Airlines Logo
6:00 am - 11:11 am
IAD
-
BOS
5h 11m
1 stop
$157United Airlines
Sat, Feb 7 - Sun, Feb 8
JetBlue Logo
9:15 am - 11:05 am
BOS
-
DCA
1h 50mnonstop
JetBlue Logo
6:30 pm - 8:04 pm
DCA
-
BOS
1h 34mnonstop
$158JetBlue
Thu, Feb 19 - Mon, Feb 23
Multiple Airlines Logo
11:45 am - 7:20 am
BOS
-
IAD
19h 35m
1 stop
Multiple Airlines Logo
7:05 pm - 11:59 pm
IAD
-
BOS
28h 54m
1 stop
$160Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
JetBlue Logo
5:05 pm - 6:55 pm
BOS
-
DCA
1h 50mnonstop
JetBlue Logo
7:00 am - 8:30 am
DCA
-
BOS
1h 30mnonstop
$160JetBlue
Thu, Feb 26 - Sun, Mar 1
Multiple Airlines Logo
11:45 am - 7:20 am
BOS
-
IAD
19h 35m
1 stop
Multiple Airlines Logo
7:05 pm - 11:59 pm
IAD
-
BOS
28h 54m
1 stop
$164Multiple Airlines
Thu, Feb 19 - Mon, Feb 23
Delta Logo
9:45 pm - 11:43 pm
BOS
-
DCA
1h 58mnonstop
Delta Logo
6:00 am - 7:35 am
DCA
-
BOS
1h 35mnonstop
$167Delta
Thu, Feb 26 - Thu, Mar 5
Delta Logo
11:55 am - 1:50 pm
BOS
-
DCA
1h 55mnonstop
Delta Logo
6:00 am - 7:35 am
DCA
-
BOS
1h 35mnonstop
$168Delta
Thu, Feb 19 - Mon, Feb 23
Spirit Airlines Logo
5:27 am - 11:31 pm
BOS
-
BWI
18h 04m
1 stop
Spirit Airlines Logo
12:30 pm - 11:59 pm
BWI
-
BOS
35h 29m
3 stops
$203Spirit Airlines
Thu, Feb 19 - Mon, Feb 23
Spirit Airlines Logo
5:27 am - 11:31 pm
BOS
-
BWI
18h 04m
1 stop
Spirit Airlines Logo
12:30 pm - 11:59 pm
BWI
-
BOS
35h 29m
3 stops
$205Spirit Airlines
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
12:30 pm - 2:13 pm
BOS
-
BWI
25h 43m
1 stop
Frontier Logo
3:19 pm - 1:13 am
BWI
-
BOS
9h 54m
1 stop
$210Frontier
Sun, Mar 1 - Tue, Mar 31

Frontier flights from Boston to Washington, D.C.

Our best Frontier deals on Boston to Washington, D.C. flight tickets
Frontier
Feb 19
BOS6:00 amBoston Logan Intl
10h 43m
1 stop
IAD4:43 pmWashington, D.C. Dulles Intl
Feb 23
IAD5:22 pmWashington, D.C. Dulles Intl
7h 51m
1 stop
BOS1:13 amBoston Logan Intl
$175
Frontier
Feb 19
BOS6:00 amBoston Logan Intl
10h 43m
1 stop
IAD4:43 pmWashington, D.C. Dulles Intl
Feb 23
IAD5:22 pmWashington, D.C. Dulles Intl
7h 51m
1 stop
BOS1:13 amBoston Logan Intl
$176
Frontier
Feb 2
BOS6:00 amBoston Logan Intl
10h 28m
1 stop
IAD4:28 pmWashington, D.C. Dulles Intl
Feb 9
IAD5:33 pmWashington, D.C. Dulles Intl
7h 40m
1 stop
BOS1:13 amBoston Logan Intl
$181

United Airlines flights from Boston to Washington, D.C.

Our best United Airlines deals on Boston to Washington, D.C. flight tickets
United Airlines
Feb 7
BOS7:21 pmBoston Logan Intl
3h 52m
1 stop
IAD11:13 pmWashington, D.C. Dulles Intl
Feb 8
IAD6:00 amWashington, D.C. Dulles Intl
5h 11m
1 stop
BOS11:11 amBoston Logan Intl
$157
United Airlines
Feb 26
BOS9:30 amBoston Logan Intl
1h 44m
IAD11:14 amWashington, D.C. Dulles Intl
Mar 1
IAD6:00 amWashington, D.C. Dulles Intl
4h 55m
1 stop
BOS10:55 amBoston Logan Intl
$163
United Airlines
Feb 23
BOS7:19 pmBoston Logan Intl
1h 44m
IAD9:03 pmWashington, D.C. Dulles Intl
Feb 25
IAD12:36 pmWashington, D.C. Dulles Intl
1h 36m
BOS2:12 pmBoston Logan Intl
$167

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Boston to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sat 2/7

7:21 pm-11:13 pm

1 stop3h 52m

Washington, D.C. Dulles Intl

Sun 2/8

6:00 am-11:11 am

1 stop5h 11m

$157

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Thu 2/19

9:15 am-11:05 am

Nonstop1h 50m

Washington, D.C. Reagan-National

Mon 2/23

6:30 pm-8:04 pm

Nonstop1h 34m

$158

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Thu 2/19

11:45 am-7:20 am

1 stop19h 35m

Washington, D.C. Dulles Intl

Mon 2/23

7:05 pm-11:59 pm

1 stop28h 54m

$160

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Thu 2/26

5:05 pm-6:55 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Sun 3/1

7:00 am-8:30 am

Nonstop1h 30m

$160

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Thu 2/19

11:45 am-7:20 am

1 stop19h 35m

Washington, D.C. Dulles Intl

Mon 2/23

7:05 pm-11:59 pm

1 stop28h 54m

$164

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Thu 2/26

9:45 pm-11:43 pm

Nonstop1h 58m

Washington, D.C. Reagan-National

Thu 3/5

6:00 am-7:35 am

Nonstop1h 35m

$167

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Thu 2/19

11:55 am-1:50 pm

Nonstop1h 55m

Washington, D.C. Reagan-National

Mon 2/23

6:00 am-7:35 am

Nonstop1h 35m

$168

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Thu 2/19

5:27 am-11:31 pm

1 stop18h 04m

Baltimore/Washington

Mon 2/23

12:30 pm-11:59 pm

3 stops35h 29m

$203

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Thu 2/19

5:27 am-11:31 pm

1 stop18h 04m

Baltimore/Washington

Mon 2/23

12:30 pm-11:59 pm

3 stops35h 29m

$205

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Sun 3/1

12:30 pm-2:13 pm

1 stop25h 43m

Baltimore/Washington

Tue 3/31

3:19 pm-1:13 am

1 stop9h 54m

$210

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Boston to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The month of March is, on average, the cheapest month to fly to Washington, D.C. from Boston, with most prices found around $182. If you’re not able to fly to Washington, D.C. in March, then February is your next best option. Flight prices from Boston to Washington, D.C. during February average around $187.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Boston is on a Friday. momondo users have found tickets for Friday departures for as low as $293. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Washington, D.C. for around $389.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Boston to Washington, D.C. when you can find flight prices for as low as $295. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $397. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Boston Logan Intl to Washington, D.C. flight route?

Fly from Boston Logan Intl to Washington, D.C. Dulles Intl for the best Boston Logan Intl - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $278 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Boston for as low as $189 on momondo.

What cabin class options are available on Boston Logan Intl to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Boston to Washington, D.C..

How have Boston to Washington, D.C. flight prices changed over time?

As of January 2026, prices for Boston to Washington, D.C. flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Washington, D.C. (BOS to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Washington, D.C.

Best Price Found

$128

Fastest flight time

1h 30m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Boston in the past 72 hours is $128. The best round-trip flight deal from Boston to Washington, D.C. found on momondo in the last 72 hours is $190.
The fastest flight from Boston to Washington, D.C. takes 1h 30m
Direct flights go from Boston to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Boston there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).
  • Is flying the fastest way to get from Boston to Washington, D.C.?

    Based on just travel duration our users have found a flight from Boston to Washington, D.C. to be the fastest option to their destination at just 1h 50m. If travel time is less of a concern you may want to look into booking some alternative forms of transportation like a train from Boston to Washington, D.C. or a bus from Boston to Washington, D.C..

  • Is flying the cheapest way to get from Boston to Washington, D.C.?

    A bus from Boston to Washington, D.C. from $106 can save you up to 32% on the cost of your trip compared to booking a flight from Boston to Washington, D.C. or a train from Boston to Washington, D.C..

  • How far is Boston Logan Intl to Washington, D.C. by plane?

    There are 393.5 mi between Boston Logan Intl and Washington, D.C.. 1h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Washington, D.C.?

    Prices for flights from Boston Logan Intl Airport to Washington, D.C. refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Washington, D.C.?

  • How old do you have to be to fly from Boston Logan Intl Airport to Washington, D.C.?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Boston to Washington, D.C.?

  • What is the most popular airline from Boston to Washington, D.C.?

Best airlines flying from Boston to Washington, D.C.

Compare and see reviews for airlines that fly from Boston to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $42Free CancellationRating
6.3
8,384 reviews
Search Spirit Airlines flights
DeltaPriceFrom $80Free CancellationRating
7.9
8,119 reviews
Search Delta flights
JetBluePriceFrom $97Free CancellationRating
7.2
2,890 reviews
Search JetBlue flights
United AirlinesPriceFrom $118Free CancellationRating
7.4
9,205 reviews
Search United Airlines flights
American AirlinesPriceFrom $147Free CancellationRating
7.2
11,197 reviews
Search American Airlines flights
SouthwestPriceFrom $161Free CancellationRating
8.0
4,268 reviews
Search Southwest flights
  • Delta Flights From Boston to Washington, D.C.

    Across 54 Delta flights from Boston to Washington, D.C. this week, the average price was $228, with the best Delta deals starting from $80 round-trip. 8,119 users have rated Delta on momondo, with an average score of 7.9/10.

  • United Airlines Flights From Boston to Washington, D.C.

    Another popular option for Boston to Washington, D.C. flights is United Airlines (7.4/10, 9,205 ratings). United Airlines flies from Boston to Washington, D.C. around 20 times per week, with deals starting from $118 round-trip and rising to an average price of around $258.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Reston

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Washington, D.C. for you.

Can I find flights from Boston to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Washington, D.C..

I’m not ready to book a flight from Boston to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Thu 2/26
Thu 3/5

Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.