Cheap flights from Boston to Washington, D.C. from $75

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 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Boston to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 10:44 am
BOS
-
IAD
28h 44m
1 stop
Frontier Logo
5:33 pm - 1:13 am
IAD
-
BOS
7h 40m
1 stop
$147Frontier
Fri, Jan 30 - Mon, Feb 2
JetBlue Logo
7:55 pm - 9:45 pm
BOS
-
DCA
1h 50mnonstop
JetBlue Logo
7:00 am - 8:31 am
DCA
-
BOS
1h 31mnonstop
$147JetBlue
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
12:36 pm - 12:31 am
BOS
-
IAD
11h 55m
1 stop
Frontier Logo
9:58 pm - 10:11 am
IAD
-
BOS
12h 13m
1 stop
$150Frontier
Sat, Mar 28 - Wed, Apr 8
Multiple Airlines Logo
6:00 am - 5:13 pm
BOS
-
IAD
11h 13m
1 stop
Multiple Airlines Logo
7:05 pm - 11:59 pm
IAD
-
BOS
28h 54m
1 stop
$153Multiple Airlines
Fri, Feb 20 - Mon, Feb 23
Multiple Airlines Logo
7:00 am - 8:40 am
BOS
-
IAD
25h 40m
1 stop
Multiple Airlines Logo
5:33 pm - 11:57 pm
IAD
-
BOS
30h 24m
2 stops
$164Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
United Airlines Logo
2:20 pm - 4:06 pm
BOS
-
IAD
1h 46mnonstop
United Airlines Logo
9:00 am - 10:36 am
IAD
-
BOS
1h 36mnonstop
$167United Airlines
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
9:30 am - 11:16 am
BOS
-
IAD
1h 46mnonstop
United Airlines Logo
12:36 pm - 2:12 pm
IAD
-
BOS
1h 36mnonstop
$172United Airlines
Tue, Feb 10 - Thu, Feb 12
Spirit Airlines Logo
3:43 pm - 11:47 pm
BOS
-
BWI
8h 04m
1 stop
Spirit Airlines Logo
4:44 pm - 11:19 pm
BWI
-
BOS
6h 35m
1 stop
$200Spirit Airlines
Tue, Jan 27 - Sat, Jan 31
Spirit Airlines Logo
3:43 pm - 11:47 pm
BOS
-
BWI
8h 04m
1 stop
Spirit Airlines Logo
1:00 pm - 11:57 pm
BWI
-
BOS
10h 57m
1 stop
$202Spirit Airlines
Fri, Jan 30 - Mon, Feb 2
Southwest Logo
9:45 pm - 11:25 pm
BOS
-
BWI
1h 40mnonstop
Southwest Logo
10:45 am - 12:15 pm
BWI
-
BOS
1h 30mnonstop
$206Southwest
Thu, Feb 12 - Tue, Feb 17

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 5
BOS2:20 pmBoston Logan Intl
1h 46m
IAD4:06 pmWashington, D.C. Dulles Intl
Feb 8
IAD9:00 amWashington, D.C. Dulles Intl
1h 36m
BOS10:36 amBoston Logan Intl
$167
United Airlines
Feb 10
BOS9:30 amBoston Logan Intl
1h 46m
IAD11:16 amWashington, D.C. Dulles Intl
Feb 12
IAD12:36 pmWashington, D.C. Dulles Intl
1h 36m
BOS2:12 pmBoston Logan Intl
$172
United Airlines
Feb 12
BOS5:35 amBoston Logan Intl
1h 44m
IAD7:19 amWashington, D.C. Dulles Intl
Feb 14
IAD12:36 pmWashington, D.C. Dulles Intl
1h 36m
BOS2:12 pmBoston Logan Intl
$176

Frontier flights from Boston to Washington, D.C.

Our best Frontier deals on Boston to Washington, D.C. flight tickets
Frontier
Jan 30
BOS6:00 amBoston Logan Intl
28h 44m
1 stop
IAD10:44 amWashington, D.C. Dulles Intl
Feb 2
IAD5:33 pmWashington, D.C. Dulles Intl
7h 40m
1 stop
BOS1:13 amBoston Logan Intl
$147
Frontier
Mar 28
BOS12:36 pmBoston Logan Intl
11h 55m
1 stop
IAD12:31 amWashington, D.C. Dulles Intl
Apr 8
IAD9:58 pmWashington, D.C. Dulles Intl
12h 13m
1 stop
BOS10:11 amBoston Logan Intl
$150
Frontier
Jan 22
BOS6:00 amBoston Logan Intl
10h 28m
1 stop
IAD4:28 pmWashington, D.C. Dulles Intl
Jan 26
IAD5:33 pmWashington, D.C. Dulles Intl
7h 40m
1 stop
BOS1:13 amBoston Logan Intl
$156

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 12, 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

Fri 1/30

6:00 am-10:44 am

1 stop28h 44m

Washington, D.C. Dulles Intl

Mon 2/2

5:33 pm-1:13 am

1 stop7h 40m

$147

BostonWashington, D.C.

BOS - DCA

BOSDCA

Boston Logan Intl

Thu 2/5

7:55 pm-9:45 pm

Nonstop1h 50m

Washington, D.C. Reagan-National

Sun 2/8

7:00 am-8:31 am

Nonstop1h 31m

$147

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Sat 3/28

12:36 pm-12:31 am

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 4/8

9:58 pm-10:11 am

1 stop12h 13m

$150

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Fri 2/20

6:00 am-5:13 pm

1 stop11h 13m

Washington, D.C. Dulles Intl

Mon 2/23

7:05 pm-11:59 pm

1 stop28h 54m

$153

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Thu 2/5

7:00 am-8:40 am

1 stop25h 40m

Washington, D.C. Dulles Intl

Mon 2/9

5:33 pm-11:57 pm

2 stops30h 24m

$164

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Thu 2/5

2:20 pm-4:06 pm

Nonstop1h 46m

Washington, D.C. Dulles Intl

Sun 2/8

9:00 am-10:36 am

Nonstop1h 36m

$167

BostonWashington, D.C.

BOS - IAD

BOSIAD

Boston Logan Intl

Tue 2/10

9:30 am-11:16 am

Nonstop1h 46m

Washington, D.C. Dulles Intl

Thu 2/12

12:36 pm-2:12 pm

Nonstop1h 36m

$172

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Tue 1/27

3:43 pm-11:47 pm

1 stop8h 04m

Baltimore/Washington

Sat 1/31

4:44 pm-11:19 pm

1 stop6h 35m

$200

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Fri 1/30

3:43 pm-11:47 pm

1 stop8h 04m

Baltimore/Washington

Mon 2/2

1:00 pm-11:57 pm

1 stop10h 57m

$202

BostonBaltimore

BOS - BWI

BOSBWI

Boston Logan Intl

Thu 2/12

9:45 pm-11:25 pm

Nonstop1h 40m

Baltimore/Washington

Tue 2/17

10:45 am-12:15 pm

Nonstop1h 30m

$206

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 cheapest month to fly to Washington, D.C.?

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Boston, with most prices found around $178. If you’re not able to fly to Washington, D.C. in January, then March is your next best option. Flight prices from Boston to Washington, D.C. during March average around $181.

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 $292. 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 $388.

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 $291. 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 $406. 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. Reagan-National 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?

You could potentially save up to 4% on your flight if you consider stops on a Boston to Washington, D.C. flight.

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 $176.
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 $103 can save you up to 29% 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 $48Free CancellationRating
6.3
8,303 reviews
Search Spirit Airlines flights
JetBluePriceFrom $68Free CancellationRating
7.2
2,884 reviews
Search JetBlue flights
DeltaPriceFrom $84Free CancellationRating
7.9
8,039 reviews
Search Delta flights
United AirlinesPriceFrom $122Free CancellationRating
7.4
9,149 reviews
Search United Airlines flights
American AirlinesPriceFrom $147Free CancellationRating
7.2
11,114 reviews
Search American Airlines flights
SouthwestPriceFrom $162Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
  • Delta Flights From Boston to Washington, D.C.

    Across 51 Delta flights from Boston to Washington, D.C. this week, the average price was $258, with the best Delta deals starting from $84 round-trip. 8,039 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, 9,149 ratings). United Airlines flies from Boston to Washington, D.C. around 17 times per week, with deals starting from $122 round-trip and rising to an average price of around $259.

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
Glen Burnie
Linthicum Heights
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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 2/11
Wed 2/18

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.