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 9/9. 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

Tue, Oct 20 - Sat, Oct 24
Delta Logo
7:20 pm - 6:33 am
GEG
-
BOS
8h 13m
1 stop
Delta Logo
7:05 am - 1:02 pm
BOS
-
GEG
8h 57m
1 stop
$214Delta
Thu, Sep 10 - Sat, Sep 19
Delta Logo
5:00 pm - 6:09 am
GEG
-
BOS
10h 09m
1 stop
Delta Logo
6:45 pm - 11:52 pm
BOS
-
GEG
8h 07m
1 stop
$231Delta
Mon, Aug 17 - Tue, Aug 25
Delta Logo
10:56 pm - 12:45 pm
GEG
-
BOS
10h 49m
1 stop
Delta Logo
7:45 am - 3:19 pm
BOS
-
GEG
10h 34m
1 stop
$232Delta
Thu, Aug 13 - Wed, Aug 19
Southwest Logo
12:20 pm - 12:25 am
GEG
-
BOS
9h 05m
1 stop
Southwest Logo
2:45 pm - 10:55 pm
BOS
-
GEG
11h 10m
2 stops
$251Southwest
Thu, Aug 13 - Wed, Aug 19
Southwest Logo
12:20 pm - 12:25 am
GEG
-
BOS
9h 05m
1 stop
Southwest Logo
2:45 pm - 10:55 pm
BOS
-
GEG
11h 10m
2 stops
$259Southwest
Tue, Oct 20 - Mon, Oct 26
American Airlines Logo
9:04 am - 11:14 pm
GEG
-
BOS
11h 10m
1 stop
American Airlines Logo
5:24 am - 11:35 am
BOS
-
GEG
9h 11m
1 stop
$263American Airlines
Fri, Jun 26 - Sat, Jul 4
United Airlines Logo
10:27 am - 9:53 pm
PDX
-
BOS
8h 26m
1 stop
United Airlines Logo
9:40 am - 3:09 pm
BOS
-
PDX
8h 29m
1 stop
$290United Airlines
Mon, Jul 6 - Mon, Jul 13
American Airlines Logo
10:30 pm - 12:03 pm
PDX
-
BOS
10h 33m
1 stop
American Airlines Logo
5:52 pm - 12:55 am
BOS
-
PDX
10h 03m
1 stop
$292American Airlines
Mon, Sep 21 - Thu, Sep 24
Alaska Airlines Logo
8:39 pm - 7:39 am
GEG
-
BOS
8h 00m
1 stop
Alaska Airlines Logo
7:12 am - 12:39 pm
BOS
-
GEG
8h 27m
1 stop
$293Alaska Airlines
Tue, Oct 27 - Wed, Oct 28
Alaska Airlines Logo
7:43 pm - 7:29 am
GEG
-
BOS
8h 46m
1 stop
Alaska Airlines Logo
10:04 am - 3:44 pm
BOS
-
GEG
8h 40m
1 stop
$309Alaska Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$99
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 1% increase in price.
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
Wells
Everett
Middletown
Plymouth
Gloucester
Concord
Woburn
Brookline
Revere
York Beach
Burlington
South Portland
Braintree
West Yarmouth
Danvers
Somerville

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

Boston (BOS)