Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $604, 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 $462 for one-way and $604 return.

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

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

Round-trip

One-way

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Direct

Recent round-trip Delta flight deals to Seattle

Fri, May 29 - Thu, Jun 11

9:05 pm - 11:55 pm

LAX

SEA

2h 50mnonstop

5:48 pm - 8:34 pm

SEA

LAX

2h 46mnonstop

$137Delta

Sun, Jun 7 - Fri, Jun 26

6:00 am - 8:16 am

SFO

SEA

2h 16mnonstop

9:38 pm - 11:59 pm

SEA

SFO

2h 21mnonstop

$137Delta

Fri, May 15 - Sun, May 17

9:05 pm - 11:55 pm

LAX

SEA

2h 50mnonstop

7:55 pm - 10:44 pm

SEA

LAX

2h 49mnonstop

$138Delta

Tue, Sep 1 - Wed, Sep 9

1:05 pm - 3:24 pm

SFO

SEA

2h 19mnonstop

9:50 am - 12:11 pm

SEA

SFO

2h 21mnonstop

$141Delta

Thu, Sep 3 - Sat, Sep 12

6:05 am - 8:25 am

SFO

SEA

2h 20mnonstop

9:25 pm - 11:46 pm

SEA

SFO

2h 21mnonstop

$147Delta

Thu, Sep 3 - Thu, Sep 10

6:05 am - 8:25 am

SFO

SEA

2h 20mnonstop

9:25 pm - 11:46 pm

SEA

SFO

2h 21mnonstop

$153Delta

Wed, Jun 24 - Mon, Jul 6

6:30 am - 8:31 am

DEN

SEA

3h 01mnonstop

7:55 pm - 11:45 pm

SEA

DEN

2h 50mnonstop

$157Delta

Tue, Jun 9 - Tue, Aug 18

8:59 pm - 11:24 pm

SFO

SEA

2h 25mnonstop

9:25 pm - 11:46 pm

SEA

SFO

2h 21mnonstop

$161Delta

Tue, Jun 23 - Fri, Jun 26

7:00 pm - 11:59 pm

DEN

SEA

5h 59m

1 stop

7:55 pm - 11:45 pm

SEA

DEN

2h 50mnonstop

$167Delta

Tue, May 12 - Wed, May 13

8:30 pm - 10:55 pm

SFO

SEA

2h 25mnonstop

7:15 am - 9:34 am

SEA

SFO

2h 19mnonstop

$167Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$69
Average price round-trip	$1,900
Good deal round-trip	$1,615
Good deal one-way	$1,026

Best time to beat the crowds with an average 16% drop in price.

Most popular time to fly with an average 5% increase in price.

Flight from Los Angeles 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 $604, 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 $462 for one-way and $604 return.
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 $175.
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

Good8,438 verified ratings

7.9Comfort

7.2Food

8.5Crew

8.1Boarding

7.8Entertainment

10.0 Wonderful

Tiara, Apr 2026

Food and entertainment was great

6.0 Okay

Lucy, Apr 2026

WiFi on board. Better movies.

2.0 Poor

Nikhil, Apr 2026

Flight was delayed for over an hour.

10.0 Wonderful

Anonymous, Apr 2026

Everything was great. The only issue is unfixable. Seats are too small. 😁🤪

4.0 Mediocre

Anonymous, Apr 2026

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

8.0 Very good

Douglas, Apr 2026

Great

4.0 Mediocre

Derek, Apr 2026

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

6.0 Okay

Akanksha Devidas, Apr 2026

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

10.0 Wonderful

Kathryn, Apr 2026

On time, great service.

2.0 Poor

Glenn, Apr 2026

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

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Cheap 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?

With an average return price of $604, 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 $462 for one-way and $604 return.

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.

Top tips for your flights to Seattle with Delta

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