BOS

$99 Find Cheap Flights from Washington to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boston departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Washington to Boston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington to Boston that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington to Boston

Mon, May 18 - Thu, Jun 4
Delta Logo
5:37 pm - 7:35 am
GEG
-
BOS
10h 58m
1 stop
Delta Logo
4:30 pm - 11:18 pm
BOS
-
GEG
9h 48m
1 stop
$231Delta
Fri, Aug 21 - Tue, Aug 25
Delta Logo
5:00 pm - 6:09 am
GEG
-
BOS
10h 09m
1 stop
Delta Logo
6:35 pm - 11:44 pm
BOS
-
GEG
8h 09m
1 stop
$232Delta
Mon, May 11 - Thu, May 28
American Airlines Logo
12:59 am - 3:30 pm
PDX
-
BOS
11h 31m
1 stop
American Airlines Logo
3:06 pm - 11:23 pm
BOS
-
PDX
11h 17m
1 stop
$233American Airlines
Tue, Aug 18 - Mon, Aug 31
Southwest Logo
3:00 pm - 6:00 am
PDX
-
BOS
12h 00m
1 stop
Southwest Logo
1:10 pm - 9:10 pm
BOS
-
PDX
11h 00m
2 stops
$236Southwest
Fri, May 8 - Sun, May 10
Delta Logo
11:12 pm - 9:06 am
PDX
-
BOS
6h 54m
1 stop
Delta Logo
5:51 am - 12:30 pm
BOS
-
PDX
9h 39m
1 stop
$237Delta
Tue, Jun 9 - Wed, Jun 17
American Airlines Logo
10:40 pm - 8:41 am
PDX
-
BOS
7h 01m
1 stop
American Airlines Logo
6:36 pm - 11:56 pm
BOS
-
PDX
8h 20m
1 stop
$243American Airlines
Wed, Aug 19 - Fri, Aug 21
Southwest Logo
3:00 pm - 6:00 am
PDX
-
BOS
12h 00m
1 stop
Southwest Logo
3:55 pm - 8:45 pm
BOS
-
PDX
7h 50m
1 stop
$247Southwest
Wed, Jun 3 - Wed, Jun 10
Alaska Airlines Logo
4:47 pm - 5:44 am
SEA
-
BOS
9h 57m
1 stop
Alaska Airlines Logo
7:44 pm - 11:07 pm
BOS
-
SEA
6h 23mnonstop
$281Alaska Airlines
Sat, May 16 - Wed, May 20
JetBlue Logo
11:30 am - 8:07 pm
SEA
-
BOS
5h 37mnonstop
JetBlue Logo
7:00 am - 10:17 am
BOS
-
SEA
6h 17mnonstop
$282JetBlue
Mon, May 18 - Thu, Jun 4
Alaska Airlines Logo
7:01 am - 5:44 am
GEG
-
BOS
19h 43m
1 stop
Alaska Airlines Logo
6:40 pm - 9:45 pm
BOS
-
GEG
30h 05m
1 stop
$296Alaska Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Spokane to Boston

Flights from Washington to Boston: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Washington to Boston 
Learn how KAYAK collects reviews and tips from users.
rsmrostovFlew with Alaska Airlines
SEA
-
BOS
Jan 2026
If you have a small personal bag and a personal item you will be hustled to consolidate snacks on the flight of very poor so bring your own food and if you have an Android phone you likely will have issues connecting to Wi-Fi on the plane especially if the connection was dropped in the middle of watching a movie and then you attempt to reinstate it sometimes you have to clear browsing history and cookies becomes painful
Verified travelerFlew with Alaska Airlines
SEA
-
BOS
Jul 2024
Generally Alaska Airlines have very friendly and helpful people in my experience. They don’t have TVs in all planes so make sure to download their app if you want entertainment on the plane.

FAQs for booking flights from Washington to Boston

  • How does KAYAK find such low prices on flights from Washington to Boston?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington to Boston?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Boston with an airline and back to Washington with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Boston?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boston from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Hampton
Warwick
Waltham
Everett
Wells
Plymouth
Middletown
Gloucester
Concord
Woburn
Brookline
Revere
York Beach
Burlington
Danvers
West Yarmouth
South Portland
Braintree
Quincy

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

Boston (BOS)