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 $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

Sun, Jan 11 - Mon, Jan 12

6:20 am - 8:37 amPHX-SEA

3h 17mnonstop

9:55 am - 1:50 pmSEA-PHX

2h 55mnonstop

$117Delta

Find Deal

Thu, Jan 8 - Mon, Jan 12

1:00 pm - 7:34 pmSFO-SEA

6h 34m1 stop

9:20 pm - 11:28 pmSEA-SFO

2h 08mnonstop

$126Delta

Find Deal

Thu, Jan 8 - Mon, Jan 12

4:03 pm - 10:24 pmSFO-SEA

6h 21m1 stop

11:25 am - 1:38 pmSEA-SFO

2h 13mnonstop

$127Delta

Find Deal

Sat, Dec 13 - Mon, Dec 15

5:45 am - 8:06 amSFO-SEA

2h 21mnonstop

10:25 am - 5:40 pmSEA-SFO

7h 15m1 stop

$128Delta

Find Deal

Sat, Jan 10 - Sun, Jan 11

7:30 am - 10:36 amONT-SEA

3h 06mnonstop

6:05 pm - 10:38 pmSEA-ONT

4h 33m1 stop

$129Delta

Find Deal

Sat, Dec 13 - Sun, Dec 14

4:49 pm - 11:25 pmONT-SEA

6h 36m1 stop

8:30 am - 11:13 amSEA-ONT

2h 43mnonstop

$130Delta

Find Deal

Tue, Feb 17 - Thu, Feb 26

6:00 am - 12:58 pmSFO-SEA

6h 58m1 stop

11:17 am - 5:56 pmSEA-SFO

6h 39m1 stop

$137Delta

Find Deal

Fri, Feb 27 - Mon, Mar 2

5:00 pm - 12:09 amONT-SEA

7h 09m1 stop

11:20 am - 4:02 pmSEA-ONT

4h 42m1 stop

$139Delta

Find Deal

Sat, Jan 10 - Sun, Jan 11

6:00 am - 12:33 pmONT-SEA

6h 33m1 stop

6:05 pm - 10:38 pmSEA-ONT

4h 33m1 stop

$140Delta

Find Deal

Sun, Dec 14 - Fri, Jan 2

8:00 am - 10:20 amPHX-SEA

3h 20mnonstop

7:35 am - 11:30 amSEA-PHX

2h 55mnonstop

$152Delta

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$59
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 13% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from Phoenix Sky Harbor Airport 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

Good7,995 verified ratings

8.1Boarding

7.9Comfort

8.5Crew

7.3Food

7.9Entertainment

Pros +

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

David, Nov 2025

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

6.0 Okay

Connie, Nov 2025

Connecting flight was incredibly far away.

10.0 Wonderful

Connie, Nov 2025

Flights were on time.

10.0 Wonderful

Anonymous, Nov 2025

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

10.0 Wonderful

William, Nov 2025

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

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

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Find cheap Delta flights to Seattle from $59

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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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