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Cheap flights from Buffalo to Seattle from C$ 272

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
4 Mar — 11 Mar1
1 adult

The best prices from Buffalo to Seattle/Tacoma Intl are usually found in October or September, booked 25 days in advance, depart on a Friday or Monday and return on a Tuesday

Cheap flight deals from Buffalo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 February 2025.

Round-trip from

C$ 439

One-way from

C$ 272

Popular in

July

Cheapest in

October

Average price

C$ 745
American Airlines
  • American Airlines
  • 13/3-17/3
  • 2 total stops
  • 17h 40m total
  • Buffalo to Seattle
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Delta
  • Delta
  • 12/3
  • 1 total stop
  • 10h 23m total
  • Buffalo to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Buffalo to Seattle

Cheapest flights from Buffalo to Seattle
Explore the most affordable flight options available from Buffalo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 February 2025.

Thu 13/36:00 a.m.BUF - SEA
1 stop9h 50mAmerican Airlines
Mon 17/311:59 p.m.SEA - BUF
1 stop7h 50mAmerican Airlines
Deal found 27/2C$ 439
Thu 27/36:22 a.m.BUF - SEA
1 stop7h 20mDelta
Thu 3/46:00 a.m.SEA - BUF
1 stop8h 14mDelta
Deal found 27/2C$ 442
Thu 29/510:33 a.m.BUF - SEA
1 stop12h 40mJetBlue
Sun 1/69:30 p.m.SEA - BUF
1 stop9h 14mJetBlue
Deal found 27/2C$ 469
Sat 29/35:10 p.m.BUF - SEA
1 stop10h 40mSouthwest
Sat 5/44:05 p.m.SEA - BUF
2 stops14h 15mSouthwest
Deal found 27/2C$ 470
Fri 4/46:00 a.m.BUF - SEA
1 stop8h 32mUnited Airlines
Tue 8/48:50 a.m.SEA - BUF
2 stops11h 54mUnited Airlines
Deal found 27/2C$ 475
Thu 29/511:40 a.m.BUF - SEA
1 stop14h 05mSun Country Air
Sat 7/66:40 p.m.SEA - BUF
1 stop13h 04mSun Country Air
Deal found 27/2C$ 561
Thu 29/56:00 p.m.BUF - SEA
2 stops18h 09mAlaska Airlines
Sat 7/69:33 p.m.SEA - BUF
2 stops22h 49mAlaska Airlines
Deal found 27/2C$ 808

Find flights from Buffalo to Seattle within your budget

Customize your flight search to find flights from Buffalo to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 27 February 2025.

Fly from

Buffalo

Fly to

Seattle

Route

Depart

Return

Price

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 13/3

6:00 a.m.-12:50 p.m.

1 stop9h 50m

Seattle/Tacoma Intl

Mon 17/3

11:59 p.m.-10:49 a.m.

1 stop7h 50m

C$ 439

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 27/3

6:22 a.m.-10:42 a.m.

1 stop7h 20m

Seattle/Tacoma Intl

Thu 3/4

6:00 a.m.-5:14 p.m.

1 stop8h 14m

C$ 442

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 29/5

10:33 a.m.-8:13 p.m.

1 stop12h 40m

Seattle/Tacoma Intl

Sun 1/6

9:30 p.m.-9:44 a.m.

1 stop9h 14m

C$ 469

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sat 29/3

5:10 p.m.-12:50 a.m.

1 stop10h 40m

Seattle/Tacoma Intl

Sat 5/4

4:05 p.m.-9:20 a.m.

2 stops14h 15m

C$ 470

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 4/4

6:00 a.m.-11:32 a.m.

1 stop8h 32m

Seattle/Tacoma Intl

Tue 8/4

8:50 a.m.-11:44 p.m.

2 stops11h 54m

C$ 475

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 29/5

11:40 a.m.-10:45 p.m.

1 stop14h 05m

Seattle/Tacoma Intl

Sat 7/6

6:40 p.m.-10:44 a.m.

1 stop13h 04m

C$ 561

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 29/5

6:00 p.m.-9:09 a.m.

2 stops18h 09m

Seattle/Tacoma Intl

Sat 7/6

9:33 p.m.-11:22 p.m.

2 stops22h 49m

C$ 808

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Wed 12/3

11:35 a.m.-6:58 p.m.

1 stop10h 23m

C$ 272

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 19/6

11:40 a.m.-10:50 p.m.

1 stop14h 10m

C$ 285

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Mon 16/6

12:29 p.m.-8:33 p.m.

1 stop11h 04m

C$ 289

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/2

Showing 1-10 of 13 results
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Best time to book a flight from Buffalo to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Buffalo 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.

Travel insights for flights from Buffalo to Seattle

Get recent, data-driven insights about flights from Buffalo to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Buffalo to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Seattle. Price data was last updated on 25 February 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to Seattle, you should look to book at least 25 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Buffalo to Seattle?

Currently, January is the cheapest month in which you can book a flight from Buffalo to Seattle (average of C$ 262). Flying from Buffalo to Seattle in April is currently the most expensive (average of C$ 366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUF to SEA?

Find hourly flight availability from Buffalo to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 February 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 41% on flights from Buffalo to Seattle by exploring options for tickets in the evening.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

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

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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 27 February 2025.
Southwest
8.1
Very good
4,362 reviews
Check prices

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,362 reviews
Southwest
8.1
Very good
4,362 reviews
Check prices

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,717 reviews
Southwest
8.1
Very good
4,362 reviews
Check prices

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,140 reviews
Southwest
8.1
Very good
4,362 reviews
Check prices

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

JetBlue
7.4
Good
3,035 reviews
Southwest
8.1
Very good
4,362 reviews
Check prices

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

United Airlines
7.4
Good
8,723 reviews
Southwest
8.1
Very good
4,362 reviews
Check prices

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Buffalo to Seattle round-trip?

    According to our current data, American Airlines (C$ 439), Delta (C$ 442), and JetBlue (C$ 469) offers the cheapest pricing from Buffalo to Seattle. American Airlines is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Buffalo to Seattle one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 272. Sun Country Air flights start at C$ 285 while deals on JetBlue start at C$ 289 one-way.

  • Can I find deals for flights from Buffalo to Seattle that include hotel bookings?

    Yes. In addition to deals on Buffalo to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Seattle.

  • Can I find deals for business class flights from Buffalo to Seattle?

    Yes. Cheapflights offers flight deals from Buffalo to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Buffalo to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Seattle (average of C$ 262). Flying from Buffalo to Seattle in April is currently the most expensive (average of C$ 366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
SeaTac
Tukwila
Marysville
Bothell
Leavenworth
Tacoma
Olympia
Lynnwood

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Alternative routes for Buffalo to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Buffalo to Seattle

Discover the top 5 airlines that operate flights from Buffalo to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 27 February 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 352AverageC$ 586FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapestC$ 353AverageC$ 498FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SouthwestCheapestC$ 512AverageC$ 649FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 564AverageC$ 904FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 568AverageC$ 937FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Buffalo to Seattle?

Cheapflights makes it easy to find Buffalo to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Seattle?

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Can Cheapflights find flights from Buffalo to Seattle with no change fees?

Yes, we can. To see specific flights from Buffalo to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Buffalo to Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Buffalo to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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