Find Cheap Flights from Buffalo to Seattle/Tacoma Intl (BUF - SEA)

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Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
July
Most popular time to fly
9%
expected price increase
Average Price:
$451
(avg. price over the last 2 weeks)
Good Deal:
$313
or less (round trip)

When to Book Flights from Buffalo to Seattle/Tacoma Intl

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $312 or less.
The cheapest flight from Buffalo to Seattle/Tacoma Intl was found 71 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is January.
Morning departure is around 6% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Buffalo to Seattle/Tacoma Intl Flights

How long does a flight from Buffalo to Seattle/Tacoma Intl take?
An average nonstop flight takes 7h 22m, covering a distance of 2116 miles.
Which airlines provide the cheapest flights from Buffalo to Seattle/Tacoma Intl?
In the past 3 days, the cheapest round-trip tickets were found on Delta ($274), United ($274) and Multiple Airlines ($288).
Do I need a passport to fly between Buffalo and Seattle/Tacoma Intl?
No.
What’s the cheapest day of the week to fly Buffalo to Seattle/Tacoma Intl?
For Buffalo to Seattle/Tacoma Intl, Wednesday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Seattle/Tacoma Intl back to Buffalo, the best deals are generally found on Monday, with Friday being the most expensive.

Book cheap flights from Buffalo to Seattle/Tacoma Intl (round-trip)

Airports
Origin
Buffalo
$274
only
$274
Destination
Seattle
$274
only
$274
Wed, Feb 14
BUF
SEA
9h 29m
Sat, Feb 17
SEA
BUF
9h 39m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15387 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
JFK
CUN
Okay 4.0

The flight was delayed for 4 hours.

DTW
PVR
Excellent 8.6

Easy flight from check-in to boarding to deplaning.

Nothing really! No entertainment and nothing but almonds eaten.

SJD
SLC
Excellent 10.0

Food available for purchase. Entertainment system.

ATL
MEX
Excellent 10.0

In some Delta flights that I had in the past the plane was just ok, not bad, not good. But this plane ATL-MEX was great, very nice and conformable plane, it looks and feels excellent!

JFK
SLC
Good 6.3

Too many turbulences !!!

Fri, Feb 23
BUF
SEA
7h 22m
Thu, Mar 1
SEA
BUF
8h 25m
Trip: 7 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53921 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
BRU
IAD
Good 7.0

Good food, entertainment options, communication from pilot

none of the flight attendants seemed to be friendly- literally all of them were neutral or slightly rude at best. Not impressed.

IAD
MUC
Excellent 9.3

Good experience, no issues.

Good overall.

IND
EWR
Good 7.3

Crew was outstanding . Boarding was easy. Ahead of schedule arrival

Return to terminal required a bus and then off loading like cattle for sale. Came in through maintenance area. One hour from landing to baggage claim. Terrible!

EWR
EDI
Mediocre 2.0

United staff worked with me to book a round-about itinerary on a different airline that got me to my destination within 8 hours of the original flight. Progress announcements were made at regular, predictable intervals.

My flight was cancelled an hour after scheduled takeoff due to mechanical issues. The plane was actually repaired, but the time it took to do so exceeded the flight crew's hours. I understand the practical implications, but in the moment it did feel maddeningly bureaucratic.

SAP
IAH
Excellent 8.6

The fligt

I dont like no free tv and no free wifi no good

Thu, Feb 22
BUF
SEA
8h 20m
Sun, Feb 25
SEA
BUF
8h 45m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 17
BUF
SEA
9h 50m
Tue, Apr 24
SEA
BUF
9h 46m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15387 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ATL
MEX
Excellent 10.0

In some Delta flights that I had in the past the plane was just ok, not bad, not good. But this plane ATL-MEX was great, very nice and conformable plane, it looks and feels excellent!

MSP
SMF
Good 6.3

For a 3 hour flight no onboard entertainment. Such a let down

JFK
LAX
Excellent 10.0

On time, professional boarding, clean comfortable planes, skilled pilots and professional crew. What more could you ask for.

All good.

SJD
SLC
Excellent 10.0

Food available for purchase. Entertainment system.

DTW
PVR
Excellent 8.6

Easy flight from check-in to boarding to deplaning.

Nothing really! No entertainment and nothing but almonds eaten.

Tue, May 1
BUF
SEA
9h 35m
Sun, May 6
SEA
BUF
6h 06m
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15387 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
ATL
TYS
Excellent 9.5

Flight less than 2/3 full, lots of room for comfort. On time, no need to gate check carry on.

nothing, it was great.

ATL
MEX
Excellent 10.0

In some Delta flights that I had in the past the plane was just ok, not bad, not good. But this plane ATL-MEX was great, very nice and conformable plane, it looks and feels excellent!

DTW
PVR
Excellent 8.6

Easy flight from check-in to boarding to deplaning.

Nothing really! No entertainment and nothing but almonds eaten.

MSP
CUN
Good 6.3

On time, pretty friendly crew

Too small a plane for that long a trip. Bathrooms were VERY small & rare.

JFK
LAX
Excellent 10.0

On time, professional boarding, clean comfortable planes, skilled pilots and professional crew. What more could you ask for.

All good.

Thu, Jul 5
BUF
SEA
9h 43m
Tue, Jul 17
SEA
BUF
8h 13m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Jun 1
BUF
SEA
10h 06m
Mon, Jun 4
SEA
BUF
8h 18m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jul 5
BUF
SEA
9h 43m
Sun, Jul 15
SEA
BUF
5h 54m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15387 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
MSP
CUN
Good 6.3

On time, pretty friendly crew

Too small a plane for that long a trip. Bathrooms were VERY small & rare.

JFK
LAX
Excellent 10.0

On time, professional boarding, clean comfortable planes, skilled pilots and professional crew. What more could you ask for.

All good.

MSP
SMF
Good 6.3

For a 3 hour flight no onboard entertainment. Such a let down

JFK
SLC
Good 6.3

Too many turbulences !!!

ATL
SJD
Excellent 8.0

On time departure, actually got to Cabo early.

The seat in front of mine had a broken reclining lock mechanism and the passenger kept trying to switch from recline to sitting up and it wouldn't latch in the upright position, so he kept jerking the seatback up and down for the entire 4 hour flight. Also the rows were so tight, and seatbacks were so close together, that the reclining seat in front of me was 6 inches from my face.

Wed, May 16
BUF
SEA
10h 06m
Tue, May 22
SEA
BUF
6h 36m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 29
BUF
SEA
9h 31m
Tue, Apr 3
SEA
BUF
9h 46m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 23
BUF
SEA
8h 51m
Fri, Jan 26
SEA
BUF
17h 03m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 23
BUF
SEA
8h 05m
Fri, Jan 26
SEA
BUF
17h 03m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
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Buffalo to Seattle/Tacoma Intl Flight Information

Flights Arrive in Seattle/Tacoma Intl
Flights Depart from Buffalo
Flight Price $274
Distance 2116 miles
Airlines Delta, United
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.