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Delta flights from Boston to Seattle (BOS - SEA)

BOS — SEA
Jun 4 — Jun 111
From?
To?
Tue 6/4
Tue 6/11
1 adult, Economy
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Cheapflights users flying from Boston to Seattle on Delta typically fly into Seattle/Tacoma Intl and depart from Boston Logan Intl. Select your dates above for pricing.

Delta flights from Boston to Seattle in 2024

Find detailed information about Delta flights from Boston to Seattle. Explore the options provided by Delta to plan your journey from Boston to Seattle. Data last updated May 30, 2024.

Popular in

August

Cheapest in

January

Average price (all airlines)

$386

One-way from

$149

Round-trip from

$297
Highest demand for flights from Boston Logan Intl to Seattle/Tacoma Intl; 18% potential price increase.
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Best time to find cheap flights from Boston Logan Intl to Seattle/Tacoma Intl; 3% potential price drop.
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Average price for all Boston Logan Intl to Seattle/Tacoma Intl flights (one-way and round-trip).
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Cheapest one-way Delta flight from Boston Logan Intl to Seattle/Tacoma Intl
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Cheapest round-trip Delta flight from Boston Logan Intl to Seattle/Tacoma Intl
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  • Can I get a flight from Boston to Seattle on Delta for under $400?

    Cheapflights users have found 20 Delta flights for under $400 on the BOS-SEA route. Prices on flights to Seattle from Boston can vary based on many factors including dates. To look at price based on your preferred dates, click here.

  • How do most travelers feel about Delta?

    Cheapflights users who travel with Delta (a popular airline from Boston to Seattle) have rated them a 6.4/10. This rating comes from 8,616 reviews. If you are looking to travel BOS-SEA, search your dates above.

Cheapest Delta flights from Boston to Seattle

Discover the cheapest flight options specifically offered by Delta for travel from Boston to Seattle. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 2,784,634 searches. The data was last updated on May 30, 2024.
Tue 6/117:30 amBOS - SEA
Nonstop6h 15mDelta
Tue 6/183:59 pmSEA - BOS
Nonstop5h 30mDelta
Deal found 5/29$382
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Fri 6/77:30 amBOS - SEA
Nonstop6h 15mDelta
Mon 6/103:59 pmSEA - BOS
Nonstop5h 30mDelta
Deal found 5/29$397
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Thu 6/66:30 amBOS - SEA
Nonstop6h 17mDelta
Wed 6/127:50 amSEA - BOS
Nonstop5h 40mDelta
Deal found 5/29$399
Pick Dates

Direct flights from Boston to Seattle on Delta

Discover the cheapest flight options specifically offered by Delta for travel from Boston to Seattle. Compare prices and availability to find the most affordable fares for your desired travel dates. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 2,784,634 searches. The data was last updated on May 30, 2024.
Wed 9/256:35 pmBOS - SEA
Nonstop6h 21mDelta
Wed 10/210:00 pmSEA - BOS
Nonstop5h 20mDelta
Deal found 5/29$297
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Thu 9/267:10 amBOS - SEA
Nonstop6h 21mDelta
Tue 10/810:00 pmSEA - BOS
Nonstop5h 20mDelta
Deal found 5/29$317
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Sat 9/216:35 pmBOS - SEA
Nonstop6h 21mDelta
Mon 9/303:30 pmSEA - BOS
Nonstop5h 23mDelta
Deal found 5/29$327
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Last minute deals on Cheapflights

Explore last-minute flight deals on Delta for various destinations, including Boston to Seattle. Discover attractive deals on flights departing soon. Keep an eye on the latest last-minute deals to find great opportunities for spontaneous travel. Please note that prices are subject to change and availability may vary. Data last updated May 30, 2024 and based on user searches. In the last 7 days, Cheapflights users made a total of 2,784,634 searches.
Fri 6/77:30 amBOS - SEA
Nonstop6h 15mDelta
Sun 6/911:25 pmSEA - BOS
Nonstop5h 27mDelta
Deal found 5/29$397
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Thu 6/66:30 amBOS - SEA
Nonstop6h 17mDelta
Wed 6/127:50 amSEA - BOS
Nonstop5h 40mDelta
Deal found 5/29$399
Pick Dates
Sat 6/86:55 pmBOS - SEA
Nonstop6h 17mDelta
Sun 6/1611:25 pmSEA - BOS
Nonstop5h 27mDelta
Deal found 5/30$402
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One-way Delta flights to Seattle from Boston

Search for one-way flight options from Boston to Seattle specifically provided by Delta. Find affordable one-way fares from Delta and compare prices with other airlines. These prices are based on average fares users found. In the last 7 days, Cheapflights users made a total of 2,784,634 searches. The data was last updated on May 30, 2024.
Wed 9/186:35 pmBOS - SEA
Nonstop6h 21mDelta
Deal found 5/30$149
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Sat 8/316:55 pmBOS - SEA
Nonstop6h 30mDelta
Deal found 5/29$159
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Mon 9/96:35 pmBOS - SEA
Nonstop6h 21mDelta
Deal found 5/29$169
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Best time to book a flight from Boston to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

41 - 66.2 °F

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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Fly from Boston to Seattle on another airline
Consider alternative airlines that service the Seattle area. Flight routes are based on user searches made on Cheapflights and were last updated on May 30, 2024.

Alaska Airlines flights from Boston Logan Intl to Seattle/Tacoma Intl
JetBlue flights from Boston Logan Intl to Seattle/Tacoma Intl

See what others are saying about Delta

Read reviews and see what other travelers are saying about their experiences with Delta. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Delta for your next flight. Reviews last updated May 30, 2024.
Delta
8.0
Very good
10,457 reviews
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Overview

Crew

8.6

Entertainment

8.0

Food

7.4

Comfort

7.9

Boarding

8.2
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