Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $470, Delta is the most expensive airline flying into Seattle. The cheapest airline flying to Seattle is Alaska Airlines.

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 $470 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 $69

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

Thu, Dec 11 - Mon, Dec 15

6:40 am - 9:45 amONT-SEA

3h 05mnonstop

7:11 pm - 11:58 pmSEA-ONT

4h 47m1 stop

$128Delta

Find Deal

Thu, Dec 18 - Sat, Jan 3

6:00 am - 12:57 pmONT-SEA

6h 57m1 stop

8:15 am - 11:02 amSEA-ONT

2h 47mnonstop

$129Delta

Find Deal

Thu, Dec 11 - Mon, Dec 15

5:49 pm - 8:49 pmONT-SEA

3h 00mnonstop

7:11 pm - 11:58 pmSEA-ONT

4h 47m1 stop

$130Delta

Find Deal

Mon, Dec 8 - Mon, Dec 8

9:59 am - 2:59 pmSFO-SEA

5h 00m1 stop

7:11 pm - 12:03 amSEA-SFO

4h 52m1 stop

$137Delta

Find Deal

Thu, Dec 11 - Mon, Dec 15

1:29 pm - 6:36 pmONT-SEA

5h 07m1 stop

7:11 pm - 11:58 pmSEA-ONT

4h 47m1 stop

$138Delta

Find Deal

Thu, Dec 11 - Mon, Dec 15

1:29 pm - 6:36 pmONT-SEA

5h 07m1 stop

7:11 pm - 11:58 pmSEA-ONT

4h 47m1 stop

$139Delta

Find Deal

Mon, Mar 9 - Sat, Mar 14

6:55 pm - 10:05 pmSAN-SEA

3h 10mnonstop

7:59 pm - 10:47 pmSEA-SAN

2h 48mnonstop

$148Delta

Find Deal

Thu, Feb 12 - Mon, Feb 16

1:40 pm - 4:55 pmSAN-SEA

3h 15mnonstop

7:55 pm - 10:42 pmSEA-SAN

2h 47mnonstop

$149Delta

Find Deal

Tue, Dec 9 - Thu, Dec 11

12:40 pm - 3:37 pmONT-SEA

2h 57mnonstop

5:25 am - 12:34 pmSEA-ONT

7h 09m1 stop

$149Delta

Find Deal

Wed, Dec 10 - Wed, Dec 17

11:40 am - 2:44 pmLAX-SEA

3h 04mnonstop

12:45 pm - 3:29 pmSEA-LAX

2h 44mnonstop

$157Delta

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$69
Average price round-trip	$1,088
Good deal round-trip	$925
Good deal one-way	$438

Best time to beat the crowds with an average 12% 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?
With an average return price of $470, Delta is the most expensive airline flying into Seattle. The cheapest airline flying to Seattle is Alaska Airlines.
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 $470 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 Boise and cost $118.
If you’re intending to fly with Delta, book your flight to Seattle at least 1 week 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

Good8,003 verified ratings

7.9Comfort

8.1Boarding

7.3Food

8.5Crew

7.9Entertainment

Pros +

we slept on that last flight ! (in 1102 reviews)

Cons -

We had a 2.5 hour delay because there was someone missing in the crew. (in 99 reviews)

Show reviews that mention

8.0 Very good

Anonymous, Nov 2025

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

6.0 Okay

David, Nov 2025

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

10.0 Wonderful

ricardo, Nov 2025

Great.

8.0 Very good

Kimberly, Nov 2025

Couldn’t hook up to wifi

8.0 Very good

Timothy, Nov 2025

Seats were super uncomfortable

10.0 Wonderful

Jane, Nov 2025

We were not able to access the wifi

10.0 Wonderful

Tristan, Nov 2025

Delta mine is amazing! So comfortable.

8.0 Very good

Charles, Nov 2025

The 21 year old CRJ700 was a bit too old

10.0 Wonderful

Jacky, Nov 2025

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

10.0 Wonderful

Duane, Nov 2025

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

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SEA

Find cheap Delta flights to Seattle from $69

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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

Recent last minute Delta flight deals to Seattle

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

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