Is Delta cheaper than other airlines flying to Seattle?

Delta is the cheapest airline flying to Seattle with an average return price of $441. Flights to Seattle with Alaska Airlines cost $456 on average.

Which other airlines fly to Seattle?

Along with Delta, you can also fly to Seattle with Alaska Airlines, Alaska Airlines, American Airlines and Southwest.

How much is a flight to Seattle with Delta?

On average, Delta flights to Seattle cost $441 for a round-trip.

Which airport do Delta flights to Seattle fly into?

You’ll fly into Seattle/Tacoma Airport when flying to Seattle with Delta.

Are there any other airlines in SkyTeam that fly to Seattle?

Unfortunately, there are no other airlines in SkyTeam that fly to Seattle.

Delta flights to Seattle (SEA) from $59

Flight Deals

Cheap Delta Flight Deals to Seattle

Here are some of the best deals found on KAYAK recently from Delta to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip Delta flight deals to Seattle

Fri, Jan 9 - Sun, Jan 11

4:03 pm - 10:24 pm

SFO

SEA

6h 21m1 stop

9:20 pm - 11:28 pm

SEA

SFO

2h 08mnonstop

$127Delta

Fri, Jan 9 - Sun, Jan 11

3:30 pm - 6:35 pm

ONT

SEA

3h 05mnonstop

6:05 pm - 10:38 pm

SEA

ONT

4h 33m1 stop

$129Delta

Sat, Jan 10 - Sun, Jan 11

3:30 pm - 6:35 pm

ONT

SEA

3h 05mnonstop

6:05 pm - 10:38 pm

SEA

ONT

4h 33m1 stop

$130Delta

Thu, Mar 19 - Sun, Mar 22

6:05 am - 8:21 am

SFO

SEA

2h 16mnonstop

7:20 am - 9:46 am

SEA

SFO

2h 26mnonstop

$137Delta

Mon, Jan 12 - Tue, Jan 13

3:30 pm - 6:35 pm

ONT

SEA

3h 05mnonstop

8:07 pm - 10:51 pm

SEA

ONT

2h 44mnonstop

$139Delta

Sat, Jan 10 - Sun, Jan 11

6:00 am - 12:33 pm

ONT

SEA

6h 33m1 stop

6:05 pm - 10:38 pm

SEA

ONT

4h 33m1 stop

$140Delta

Fri, Mar 13 - Sun, Mar 15

4:03 pm - 11:21 pm

SFO

SEA

7h 18m1 stop

7:20 am - 9:46 am

SEA

SFO

2h 26mnonstop

$147Delta

Tue, Mar 24 - Fri, Mar 27

9:40 am - 2:47 pm

SNA

SEA

5h 07m1 stop

7:55 pm - 10:44 pm

SEA

SNA

2h 49mnonstop

$149Delta

Mon, Jan 12 - Wed, Jan 14

5:07 pm - 11:22 pm

ONT

SEA

6h 15m1 stop

11:15 am - 1:56 pm

SEA

ONT

2h 41mnonstop

$149Delta

Tue, Jan 13 - Mon, Jan 19

5:03 pm - 8:23 am

SNA

SEA

15h 20m2 stops

7:30 pm - 10:18 pm

SEA

SNA

2h 48mnonstop

$152Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$59
Average price round-trip	$1,077
Good deal round-trip	$915
Good deal one-way	$547

Best time to beat the crowds with an average 14% drop in price.

Most popular time to fly with an average 8% increase in price.

Flight from San Francisco to Seattle

(avg. price over the last 2 weeks)

or less

When to book flights with Delta to Seattle

Average price per month

Flight prices as travel date approaches

Is Delta cheaper than other airlines flying to Seattle?
Delta is the cheapest airline flying to Seattle with an average return price of $441. Flights to Seattle with Alaska Airlines cost $456 on average.
Which other airlines fly to Seattle?
Along with Delta, you can also fly to Seattle with Alaska Airlines, Alaska Airlines, American Airlines and Southwest.
How much is a flight to Seattle with Delta?
On average, Delta flights to Seattle cost $441 for a round-trip.
Which airport do Delta flights to Seattle fly into?
You’ll fly into Seattle/Tacoma Airport when flying to Seattle with Delta.
Are there any other airlines in SkyTeam that fly to Seattle?
Unfortunately, there are no other airlines in SkyTeam that fly to Seattle.

The cheapest flight to Seattle with Delta found on KAYAK in the last 2 weeks departed from Redmond and cost $107.
If you’re intending to fly with Delta, book your flight to Seattle at least 2 weeks before departure to ensure a below-average price.
High season for flights to Seattle with Delta is July and prices are highest at this time. The cheapest month to fly is January.

7.9

Good8,011 verified ratings

7.3Food

8.5Crew

7.9Comfort

7.9Entertainment

8.1Boarding

Pros +

Cons -

"Sanitized, open middle seats, comfortable." (in 81 reviews)

Show reviews that mention

10.0 Wonderful

Karen, Dec 2025

For some reason, I couldn't choose my seat. The airline gave me a seat when I got there. Not happy about that. Otherwise, everything else was great!

10.0 Wonderful

Charles, Dec 2025

Left on time, a bit delayed due to headwinds most of the trip.

4.0 Mediocre

Carl, Dec 2025

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

8.0 Very good

Scarlett, Dec 2025

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

10.0 Wonderful

Anonymous, Dec 2025

Good seats in Main cabin, excellent service and excellent landing

6.0 Okay

Mary Heather, Nov 2025

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

10.0 Wonderful

Morgan, Nov 2025

Quick flight. Total of 50 mins. Flight staff was nice

10.0 Wonderful

William, Nov 2025

Efficient and hassle free.

10.0 Wonderful

Hartaj, Nov 2025

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

10.0 Wonderful

Mary Heather, Nov 2025

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

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Cheap Delta Flight Deals to Seattle

Recent round-trip Delta flight deals to Seattle

Recent one-way Delta flight deals to Seattle

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Recent direct Delta flight deals to Seattle

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When to book flights with Delta to Seattle

FAQs for flying to Seattle with Delta

Is Delta cheaper than other airlines flying to Seattle?

Which other airlines fly to Seattle?

How much is a flight to Seattle with Delta?

Which airport do Delta flights to Seattle fly into?

Are there any other airlines in SkyTeam that fly to Seattle?

Top tips for your flights to Seattle with Delta

Delta customer reviews

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Everything you need to know for your flight to Seattle

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