BOS

$139 Find Cheap Flights from Washington to Boston - Compare and Save

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 8/28. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Useful Info
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, Aug 24 - Wed, Aug 26
JetBlue Logo
11:27 pm - 7:48 am
PDX
-
BOS
5h 21mnonstop
JetBlue Logo
9:55 am - 1:01 pm
BOS
-
PDX
6h 06mnonstop
$287JetBlue
Fri, Sep 4 - Mon, Sep 7
JetBlue Logo
11:30 pm - 7:51 am
PDX
-
BOS
5h 21mnonstop
JetBlue Logo
9:55 am - 1:01 pm
BOS
-
PDX
6h 06mnonstop
$287JetBlue
Mon, Aug 31 - Sat, Sep 5
Alaska Airlines Logo
9:36 pm - 6:09 am
PDX
-
BOS
5h 33mnonstop
Alaska Airlines Logo
5:42 pm - 8:48 pm
BOS
-
PDX
6h 06mnonstop
$287Alaska Airlines
Mon, Aug 31 - Thu, Sep 3
Alaska Airlines Logo
9:36 pm - 6:09 am
PDX
-
BOS
5h 33mnonstop
Alaska Airlines Logo
9:33 am - 12:38 pm
BOS
-
PDX
6h 05mnonstop
$287Alaska Airlines
Tue, Aug 25 - Thu, Aug 27
Multiple Airlines Logo
2:15 pm - 10:39 pm
PDX
-
BOS
5h 24mnonstop
Multiple Airlines Logo
5:42 pm - 8:50 pm
BOS
-
PDX
6h 08mnonstop
$287Multiple Airlines
Wed, Aug 26 - Fri, Aug 28
Multiple Airlines Logo
2:15 pm - 10:39 pm
PDX
-
BOS
5h 24mnonstop
Multiple Airlines Logo
9:33 am - 12:39 pm
BOS
-
PDX
6h 06mnonstop
$287Multiple Airlines
Mon, Aug 24 - Mon, Aug 31
Southwest Logo
11:30 pm - 12:15 pm
PDX
-
BOS
9h 45m
1 stop
Southwest Logo
9:40 am - 3:00 pm
BOS
-
PDX
8h 20m
1 stop
$307Southwest
Mon, Aug 24 - Wed, Aug 26
Southwest Logo
11:30 pm - 12:15 pm
PDX
-
BOS
9h 45m
1 stop
Southwest Logo
5:25 am - 10:40 am
BOS
-
PDX
8h 15m
1 stop
$307Southwest
Thu, Aug 13 - Fri, Aug 21
American Airlines Logo
10:58 pm - 10:12 am
PDX
-
BOS
8h 14m
1 stop
American Airlines Logo
6:00 am - 11:50 am
BOS
-
PDX
8h 50m
1 stop
$307American Airlines
Thu, Aug 20 - Thu, Aug 27
American Airlines Logo
10:58 pm - 10:12 am
PDX
-
BOS
8h 14m
1 stop
American Airlines Logo
11:35 am - 7:48 pm
BOS
-
PDX
11h 13m
1 stop
$307American Airlines
Useful Info

Good to know

Low season

January

Cheapest flight

$139
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 7% 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.

Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston

Boston (BOS)