Find cheap flights from Washington to Boston

BOS

Find cheap flights from Washington to Boston

Round-trip
Economy
From?
Boston Logan Intl
Wed 7/8
Wed 7/15
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Boston

Good to know

Low season

January Best time to beat the crowds with an average 5% drop in price.

High season

December Most popular time to fly with an average 6% increase in price.

Average price of a round-trip

$402 (avg. price over the last 2 weeks)

Good deal for a round-trip

$231 or less

FAQs for booking Washington to Boston flights

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top 4 airlines serving Washington to Boston Logan Intl

Scores according to KAYAK customer reviews

8.7
Korean Air
Overall score based on 4,928 reviews
8.8
Boarding
8.6
Comfort
9.1
Crew
8.6
Entertainment
8.5
Food
Airline reviews
Read more about Korean Air

Book cheap flights from Washington to Boston (round-trip)

Airports
Origin
Seattle
$128
only
$128
Pasco
$296
only
$296
Destination
Boston
$128
only
$128
Tue, Oct 20
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Wed, Oct 28
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 30m
Trip: 9 days
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
16h 51m
Sat, Aug 15
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 9 days
Based on null reviews
Wed, Aug 5
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
14h 55m
Trip: 8 days
Based on null reviews
Tue, Aug 11
PSC
Pasco Tri Cities
BOS
Boston Logan Airport
10h 36m
Sat, Aug 22
BOS
Boston Logan Airport
PSC
Pasco Tri Cities
13h 00m
Trip: 12 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Tue, Aug 18
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 15 days
Based on null reviews
Thu, Aug 6
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
9h 40m
Wed, Aug 19
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Trip: 14 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 9 days
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
16h 51m
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 6 days
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
9h 27m
Tue, Aug 18
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Trip: 12 days
Based on null reviews
Wed, Aug 5
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
15h 23m
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
22h 41m
Trip: 8 days
Based on null reviews
Sun, Aug 23
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Wed, Sep 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 30m
Trip: 18 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Sat, Aug 22
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 19 days
Based on null reviews
Fri, Jul 17
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
19h 01m
Thu, Aug 6
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 21 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Wed, Aug 19
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Trip: 16 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
9h 40m
Sun, Aug 16
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Trip: 13 days
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Sun, Aug 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 6 days
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Tue, Aug 18
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
8h 18m
Trip: 12 days
Based on null reviews
Wed, Aug 5
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Sun, Aug 16
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 12 days
Based on null reviews
Mon, Aug 10
PSC
Pasco Tri Cities
BOS
Boston Logan Airport
18h 01m
Wed, Aug 26
BOS
Boston Logan Airport
PSC
Pasco Tri Cities
10h 10m
Trip: 17 days
Based on null reviews
Wed, Aug 5
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
15h 23m
Sun, Aug 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Trip: 5 days
Based on null reviews

Book cheap flights from Washington to Boston (one-way)

Airports
Origin
Seattle
$55
only
$55
Spokane
$148
only
$148
Destination
Boston
$55
only
$55
Tue, Aug 25
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
16h 51m
Based on null reviews
Tue, Aug 25
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
9h 27m
Based on null reviews
Fri, Aug 7
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
9h 27m
Based on null reviews
Sat, Sep 5
GEG
Spokane Airport
BOS
Boston Logan Airport
9h 56m
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Based on null reviews
Thu, Aug 13
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
23h 39m
Based on null reviews
Wed, Aug 12
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Based on null reviews
Fri, Jul 17
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
40h 51m
Based on null reviews
Sat, Aug 15
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Based on null reviews
Tue, Jul 14
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
38h 49m
Based on null reviews
Thu, Aug 6
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Based on null reviews
Wed, Aug 5
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Based on null reviews
Wed, Jul 8
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
29h 54m
Based on null reviews
Tue, Aug 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 49m
Based on null reviews
Wed, Jul 22
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
29h 54m
Based on null reviews
Wed, Aug 19
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Based on null reviews
Sat, Aug 1
GEG
Spokane Airport
BOS
Boston Logan Airport
10h 19m
Based on null reviews
Sat, Jul 4
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
21h 03m
Based on null reviews
Tue, Sep 1
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Based on null reviews
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First