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

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Good to Know

Low Season:
January
Best time to beat the crowds
2%
expected price decrease
High Season:
April
Most popular time to fly
8%
expected price increase
Average price:
C$ 470
(avg. price over the last 2 weeks)
Good Deal:
C$ 386
or less (round trip)

When to Book Flights from Seattle/Tacoma Intl to Buffalo

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 C$ 386 or less.
The cheapest flight from Seattle/Tacoma Intl to Buffalo was found, on average, 25 days before departure.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be March, April and May. The cheapest month to fly is January.
Morning departure is around 5% 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 Seattle/Tacoma Intl to Buffalo Flights

How long does a flight from Seattle/Tacoma Intl to Buffalo take?
An average nonstop flight takes 6h 40m, covering a distance of 3405 km.
Which airlines provide the cheapest flights from Seattle/Tacoma Intl to Buffalo?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines (C$ 333) and Delta (C$ 340)
Do I need a passport to fly between Seattle/Tacoma Intl and Buffalo?
No.
What’s the cheapest day of the week to fly from Seattle/Tacoma Intl to Buffalo?
For Seattle/Tacoma Intl to Buffalo, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Buffalo back to Seattle/Tacoma Intl, the best deals are generally found on Monday, with Tuesday being the most expensive.

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

Airports
Origin
Seattle
C$ 333
only
C$ 333
Destination
Buffalo
C$ 333
only
C$ 333
Tue, 24 Apr
SEA
BUF
6h 47m
Wed, 25 Apr
BUF
SEA
7h 05m
C$ 333
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 1 May
SEA
BUF
8h 24m
Mon, 7 May
BUF
SEA
10h 20m
C$ 340
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

ATL
VPS
Good 7.3

Boarding was quick and so was the flight. No entertainment or food on short flights, that should be a N/A

RAP
MSP
Excellent 8.6

Very quick boarding process. There was no entertainment so I couldn't rate that.

There should be a N/A option if there is no entertainment available.

BDL
CUN
Excellent 9.6

The plane was new and very comfortable. Free entertainment and plug for charging electronics. Love this airline!

CLE
ATL
Okay 4.6

Short trip

Very hot ride

Sat, 28 Apr
SEA
BUF
8h 06m
Tue, 1 May
BUF
SEA
7h 30m
C$ 333
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sun, 18 Mar
SEA
BUF
6h 53m
Tue, 27 Mar
BUF
SEA
7h 59m
C$ 346
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
RAP
MSP
Excellent 8.6

Very quick boarding process. There was no entertainment so I couldn't rate that.

There should be a N/A option if there is no entertainment available.

DTW
BDL
Excellent 10.0

Flight was on time.

Did not appreciate Aeromexico/Delta changing my flight times after I booked, giving me a more than 7 hour layover.

MSP
ATL
Excellent 9.6

Entertainment is so appreciated on long flights. It was quiet. Snacks done quickly. Took a long time to board, but the flight was full. We were delayed out of gate because of this. Unloading plane went fairly quick but could have been a problem for short connections. Those people should have been allowed to leave first.

ATL
LAX
Good 7.6

The plane was dirty. The grounds staff was complaining as we got on about having to work late.

IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

Tue, 8 May
SEA
BUF
8h 24m
Wed, 16 May
BUF
SEA
7h 57m
C$ 333
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 19 Mar
SEA
BUF
6h 53m
Tue, 27 Mar
BUF
SEA
9h 27m
C$ 346
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

RAP
MSP
Excellent 8.6

Very quick boarding process. There was no entertainment so I couldn't rate that.

There should be a N/A option if there is no entertainment available.

MSP
ATL
Excellent 9.6

Entertainment is so appreciated on long flights. It was quiet. Snacks done quickly. Took a long time to board, but the flight was full. We were delayed out of gate because of this. Unloading plane went fairly quick but could have been a problem for short connections. Those people should have been allowed to leave first.

DTW
LAX
Good 7.0

I received a message flight would be early but it was actually late...luckily it did not affect my connection

CUN
LAX
Okay 5.0

I loved that I was able to get home! The crew was nice.

It was very very warm in the plane. The entertainment unit was lacking.

Sun, 15 Apr
SEA
BUF
6h 40m
Sat, 21 Apr
BUF
SEA
7h 46m
C$ 340
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 20 Mar
SEA
BUF
8h 10m
Tue, 27 Mar
BUF
SEA
7h 59m
C$ 346
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
CUN
LAX
Okay 5.0

I loved that I was able to get home! The crew was nice.

It was very very warm in the plane. The entertainment unit was lacking.

DTW
LAX
Good 7.0

I received a message flight would be early but it was actually late...luckily it did not affect my connection

ATL
VPS
Good 7.3

Boarding was quick and so was the flight. No entertainment or food on short flights, that should be a N/A

BDL
CUN
Excellent 9.6

The plane was new and very comfortable. Free entertainment and plug for charging electronics. Love this airline!

JFK
RSW
Excellent 9.3

on time, good service,

i agreed to check in my bag at the gate when they asked for volunteers thinking I would get it at the gate of my destination but after i checked it in in gate attendant informed me that i would get my bag at the baggage claim

Mon, 16 Apr
SEA
BUF
8h 16m
Sat, 21 Apr
BUF
SEA
11h 26m
C$ 340
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 21 Mar
SEA
BUF
9h 00m
Tue, 27 Mar
BUF
SEA
7h 59m
C$ 346
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BDL
CUN
Excellent 9.6

The plane was new and very comfortable. Free entertainment and plug for charging electronics. Love this airline!

CLE
ATL
Okay 4.6

Short trip

Very hot ride

JFK
RSW
Excellent 9.3

on time, good service,

i agreed to check in my bag at the gate when they asked for volunteers thinking I would get it at the gate of my destination but after i checked it in in gate attendant informed me that i would get my bag at the baggage claim

BOI
SLC
Good 7.6

The crew

The delay

MSP
ATL
Excellent 9.6

Entertainment is so appreciated on long flights. It was quiet. Snacks done quickly. Took a long time to board, but the flight was full. We were delayed out of gate because of this. Unloading plane went fairly quick but could have been a problem for short connections. Those people should have been allowed to leave first.

Tue, 17 Apr
SEA
BUF
7h 59m
Fri, 20 Apr
BUF
SEA
11h 05m
C$ 340
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sun, 15 Apr
SEA
BUF
8h 58m
Fri, 20 Apr
BUF
SEA
11h 05m
C$ 346
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
RAP
MSP
Excellent 8.6

Very quick boarding process. There was no entertainment so I couldn't rate that.

There should be a N/A option if there is no entertainment available.

DTW
BDL
Excellent 10.0

Flight was on time.

Did not appreciate Aeromexico/Delta changing my flight times after I booked, giving me a more than 7 hour layover.

CUN
LAX
Okay 5.0

I loved that I was able to get home! The crew was nice.

It was very very warm in the plane. The entertainment unit was lacking.

BOI
SLC
Good 7.6

The crew

The delay

IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

Wed, 2 May
SEA
BUF
8h 13m
Mon, 7 May
BUF
SEA
10h 20m
C$ 340
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 16 Apr
SEA
BUF
7h 49m
Fri, 20 Apr
BUF
SEA
11h 05m
C$ 346
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
CLE
ATL
Okay 4.6

Short trip

Very hot ride

IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

ATL
LAX
Good 7.6

The plane was dirty. The grounds staff was complaining as we got on about having to work late.

MSP
ATL
Excellent 9.6

Entertainment is so appreciated on long flights. It was quiet. Snacks done quickly. Took a long time to board, but the flight was full. We were delayed out of gate because of this. Unloading plane went fairly quick but could have been a problem for short connections. Those people should have been allowed to leave first.

ATL
VPS
Good 7.3

Boarding was quick and so was the flight. No entertainment or food on short flights, that should be a N/A

Mon, 7 May
SEA
BUF
9h 23m
Wed, 16 May
BUF
SEA
7h 57m
C$ 340
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Mon, 7 May
SEA
BUF
8h 59m
Thu, 17 May
BUF
SEA
10h 20m
C$ 346
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
RAP
MSP
Excellent 8.6

Very quick boarding process. There was no entertainment so I couldn't rate that.

There should be a N/A option if there is no entertainment available.

CLE
ATL
Okay 4.6

Short trip

Very hot ride

BDL
CUN
Excellent 9.6

The plane was new and very comfortable. Free entertainment and plug for charging electronics. Love this airline!

ATL
VPS
Good 7.3

Boarding was quick and so was the flight. No entertainment or food on short flights, that should be a N/A

MSP
ATL
Excellent 9.6

Entertainment is so appreciated on long flights. It was quiet. Snacks done quickly. Took a long time to board, but the flight was full. We were delayed out of gate because of this. Unloading plane went fairly quick but could have been a problem for short connections. Those people should have been allowed to leave first.

Fri, 13 Apr
SEA
BUF
10h 20m
Sat, 21 Apr
BUF
SEA
7h 46m
C$ 341
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 8 May
SEA
BUF
8h 24m
Thu, 17 May
BUF
SEA
10h 20m
C$ 346
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

DTW
BDL
Excellent 10.0

Flight was on time.

Did not appreciate Aeromexico/Delta changing my flight times after I booked, giving me a more than 7 hour layover.

ATL
VPS
Good 7.3

Boarding was quick and so was the flight. No entertainment or food on short flights, that should be a N/A

DTW
LAX
Good 7.0

I received a message flight would be early but it was actually late...luckily it did not affect my connection

RAP
MSP
Excellent 8.6

Very quick boarding process. There was no entertainment so I couldn't rate that.

There should be a N/A option if there is no entertainment available.

Fri, 20 Apr
SEA
BUF
10h 20m
Tue, 24 Apr
BUF
SEA
10h 05m
C$ 341
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 9 May
SEA
BUF
8h 24m
Thu, 17 May
BUF
SEA
10h 20m
C$ 346
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16210 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
IAD
CUN
Mediocre 2.0

That I landed safely

1st class was horrible.

DTW
LAX
Good 7.0

I received a message flight would be early but it was actually late...luckily it did not affect my connection

MSP
ATL
Excellent 9.6

Entertainment is so appreciated on long flights. It was quiet. Snacks done quickly. Took a long time to board, but the flight was full. We were delayed out of gate because of this. Unloading plane went fairly quick but could have been a problem for short connections. Those people should have been allowed to leave first.

DTW
BDL
Excellent 10.0

Flight was on time.

Did not appreciate Aeromexico/Delta changing my flight times after I booked, giving me a more than 7 hour layover.

ATL
VPS
Good 7.3

Boarding was quick and so was the flight. No entertainment or food on short flights, that should be a N/A

Show more results

Seattle/Tacoma Intl to Buffalo Flight Information

Flights Arrive in Buffalo
Flights Depart from Seattle/Tacoma Intl
Flight Price C$ 333
Distance 3405 km
Airlines Delta
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

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.

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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.