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$99 Find cheap flights from Massachusetts to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 8/19. 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
0 bags
Mon 6/17
Mon 6/24

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In the last 7 days travelers have searched 41,904,688 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$99
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Boston to Seattle

FAQs for booking flights from Massachusetts to Seattle

  • How does KAYAK find such low prices on flights from Massachusetts to Seattle?

    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 Massachusetts to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Massachusetts 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 Massachusetts to Seattle?

    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 Seattle with an airline and back to Massachusetts with another airline.

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

    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 Seattle from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Massachusetts to Seattle?

Find which airlines fly direct from Massachusetts to Seattle/Tacoma Intl, which days they fly and book direct flights.

Nonstop departures

Massachusetts to Seattle/Tacoma Intl

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Massachusetts

Monday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Tuesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Wednesday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Thursday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

Friday

ANA, Aer Lingus, Aeromexico, +60 more

ANA, Aer Lingus, +61 more

Saturday

ANA, Aer Lingus, Aeromexico, +62 more

ANA, Aer Lingus, +63 more

Sunday

ANA, Aer Lingus, Aeromexico, +61 more

ANA, Aer Lingus, +62 more

See more direct flights
See more direct flights

Book cheap flights from Massachusetts to Seattle

Recent round-trip flight deals

8/27Tue
1 stopSpirit Airlines
16h 21mBOS-SEA
9/10Tue
2 stopsSpirit Airlines
22h 34mSEA-BOS
$208
8/21Wed
2 stopsSpirit Airlines
29h 45mBOS-SEA
8/28Wed
1 stopSpirit Airlines
10h 37mSEA-BOS
$216
6/6Thu
2 stops
28h 38mBOS-SEA
6/11Tue
2 stops
21h 50mSEA-BOS
$230
6/6Thu
2 stops
28h 38mBOS-SEA
6/10Mon
2 stops
15h 38mSEA-BOS
$246
9/10Tue
1 stopAmerican Airlines
11h 33mBOS-SEA
9/16Mon
1 stopAmerican Airlines
7h 47mSEA-BOS
$283
5/31Fri
1 stopSun Country Air
17h 10mBDL-SEA
6/2Sun
1 stopSun Country Air
12h 36mSEA-BDL
$284
8/14Wed
1 stopAmerican Airlines
8h 38mBOS-SEA
8/19Mon
1 stopAmerican Airlines
8h 27mSEA-BOS
$285
7/12Fri
1 stopSun Country Air
13h 40mBDL-SEA
7/18Thu
1 stopSun Country Air
9h 02mSEA-BDL
$290
9/24Tue
nonstopAlaska Airlines
6h 17mBOS-SEA
9/25Wed
nonstopAlaska Airlines
5h 15mSEA-BOS
$290
9/24Tue
1 stopAlaska Airlines
10h 06mBOS-SEA
9/25Wed
nonstopAlaska Airlines
5h 15mSEA-BOS
$300

Search by stops

Search by airline

Search by price

Recent one-way flight deals

8/19Mon
1 stopSpirit Airlines
16h 21mBOS-SEA
$99
8/25Sun
1 stopSpirit Airlines
28h 45mBOS-SEA
$105
6/6Thu
2 stops
28h 38mBOS-SEA
$118
6/12Wed
3 stops
34h 12mBOS-SEA
$120
5/31Fri
1 stopSun Country Air
17h 10mBDL-SEA
$130
6/3Mon
1 stopSun Country Air
9h 59mBOS-SEA
$130
8/21Wed
1 stopUnited Airlines
8h 21mBOS-SEA
$139
9/18Wed
1 stopAmerican Airlines
8h 35mBOS-SEA
$142
9/12Thu
1 stopAmerican Airlines
10h 09mBOS-SEA
$143
6/11Tue
1 stopUnited Airlines
8h 18mBDL-SEA
$176

Search by stops

Search by airline

Search by price

Last minute flights from Massachusetts to Seattle

Last minute flight, train and bus deals

5/23Thu
multi-stopSpirit Airlines
21h 52mBOS-SEA
6/6Thu
multi-stopSpirit Airlines
23h 49mSEA-BOS
$356
5/23Thu
multi-stop
21h 52mBOS-SEA
6/6Thu
multi-stop
30h 40mSEA-BOS
$397
5/23Thu
multi-stop
21h 52mBOS-SEA
6/6Thu
multi-stop
13h 51mSEA-BOS
$402
5/21Tue
multi-stopAmerican Airlines
11h 52mBOS-SEA
6/11Tue
multi-stopAmerican Airlines
10h 25mSEA-BOS
$484
5/23Thu
multi-stopSun Country Air
7h 45mBOS-SEA
6/3Mon
multi-stopSun Country Air
14h 18mSEA-BOS
$528
5/23Thu
multi-stopAmerican Airlines
10h 56mBOS-SEA
6/6Thu
multi-stopAmerican Airlines
11h 23mSEA-BOS
$540
5/23Thu
multi-stopAlaska Airlines
13h 04mBOS-SEA
5/27Mon
nonstopAlaska Airlines
5h 26mSEA-BOS
$546
5/23Thu
nonstopDelta
6h 17mBOS-SEA
6/3Mon
nonstopDelta
5h 32mSEA-BOS
$547
5/23Thu
nonstopDelta
6h 13mBOS-SEA
6/1Sat
nonstopDelta
5h 28mSEA-BOS
$557
5/23Thu
multi-stopAlaska Airlines
11h 54mBOS-SEA
6/1Sat
nonstopAlaska Airlines
5h 25mSEA-BOS
$571

Search by stops

Search by airline

Search by price

Flights to Seattle

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Massachusetts

Cabin classes:

$1,107
$1,076
$771
$183