Is Delta cheaper than other airlines flying to Seattle?

With an average return price of $585, 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 $585 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 $108

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Cheap Delta Flight Deals to Seattle

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, Aug 7 - Thu, Aug 13

8:59 pm - 11:19 pm

SFO

SEA

2h 20mnonstop

7:20 am - 9:36 am

SEA

SFO

2h 16mnonstop

$192Delta

Fri, Aug 21 - Fri, Aug 28

6:20 am - 8:31 am

SFO

SEA

2h 11mnonstop

5:51 pm - 8:19 pm

SEA

SFO

2h 28mnonstop

$215Delta

Thu, Jul 30 - Wed, Aug 12

5:55 am - 8:05 am

SFO

SEA

2h 10mnonstop

2:35 pm - 4:56 pm

SEA

SFO

2h 21mnonstop

$216Delta

Sat, Sep 26 - Tue, Sep 29

7:00 am - 9:50 am

LAX

SEA

2h 50mnonstop

12:36 pm - 3:24 pm

SEA

LAX

2h 48mnonstop

$217Delta

Wed, Sep 2 - Wed, Sep 9

11:56 am - 2:50 pm

ONT

SEA

2h 54mnonstop

7:50 pm - 10:40 pm

SEA

ONT

2h 50mnonstop

$217Delta

Sun, Aug 9 - Thu, Aug 13

6:20 am - 8:31 am

SFO

SEA

2h 11mnonstop

9:30 pm - 11:50 pm

SEA

SFO

2h 20mnonstop

$218Delta

Thu, Aug 6 - Thu, Aug 13

6:20 am - 8:31 am

SFO

SEA

2h 11mnonstop

7:20 am - 9:36 am

SEA

SFO

2h 16mnonstop

$220Delta

Sat, Aug 22 - Mon, Aug 24

7:15 am - 9:57 am

LAX

SEA

2h 42mnonstop

9:45 pm - 12:32 am

SEA

LAX

2h 47mnonstop

$227Delta

Sat, Aug 22 - Mon, Aug 24

7:15 am - 9:57 am

LAX

SEA

2h 42mnonstop

9:45 pm - 12:32 am

SEA

LAX

2h 47mnonstop

$228Delta

Thu, Aug 6 - Sat, Aug 8

6:20 am - 8:31 am

SFO

SEA

2h 11mnonstop

10:35 am - 12:57 pm

SEA

SFO

2h 22mnonstop

$233Delta

Useful Info

KAYAK's insights & trends for Seattle flights with Delta

Get data-powered insights and trends into Delta flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly with Delta to Seattle?

The cheapest month for Delta flights to Seattle is February, where tickets cost $249 (return) on average. On the other hand, the most expensive months to fly this route on Delta are July and June, where the average cost of round-trip tickets is $400 and $392 respectively.

How far in advance should I book Delta flights to Seattle?

For the absolute cheapest price on Delta, our data suggests you should book 4 weeks before departure.

What is the cheapest flight to Seattle with Delta?

The cheapest airline ticket to Seattle from the United States with Delta in the last 5 days was $108 one-way, and $192 round-trip on the route from San Francisco to Seattle. The most popular route is from San Francisco to Seattle and the cheapest ticket found on this route in the last 5 days was $192 return.

How many direct flights does Delta operate to Seattle every week?

Each week there are around 1,549 direct flights from within the United States to Seattle. The most common day for departures is Sunday, with 20% of flights taking off on this day.

What is the cheapest day to fly to Seattle?

Based on KAYAK data, the cheapest day to fly to Seattle is Friday where tickets can be as cheap as $480. On the other hand, the most expensive day to fly is Sunday, where prices are $590 on average.

What is the cheapest time of day to fly to Seattle with Delta?

The cheapest time of day to fly to Seattle with Delta is generally in the afternoon, when flights cost $460 on average.

Low season	January
High season	July
Cheapest flight	$108
Average price round-trip	$743
Good deal round-trip	$632
Good deal one-way	$767

Best time to beat the crowds with an average 22% drop in price.

Most popular time to fly with an average 19% 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 $585, 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 $585 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 Portland and cost $227.
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.

7.8

Good8,458 verified ratings

7.8Comfort

8.5Crew

7.8Entertainment

7.2Food

8.1Boarding

2.0 Poor

Alyssa, Jul 2026

We got stuck on the tarmac taxiing after landing early so we didn’t get off the plane until an hour later than we thought we would

10.0 Wonderful

BRIAN, Jul 2026

Great crew and easy direct flight

6.0 Okay

Bridget, Jul 2026

It was okay. We were delayed for weather reasons, but the pilots and the flight control staff figured a way around the storm and were able to get us to Los Angeles safely. Not all the staff members were polite, but the entertainment on the flight was good.

2.0 Poor

Saumya, Jul 2026

The flight was delayed by more than 2 hours.

2.0 Poor

Katherine, Jul 2026

So terrible. My flight was 4 hours delayed and we weren't notified til last second within an hour of boarding. WE had to sit on the plane for 4 hours. ridiculous.

2.0 Poor

Jonathan, Jul 2026

Worst airline ever

2.0 Poor

Andrew, Jul 2026

Missed the Flight from Atlanta to Roanoke due to initial flight from Houston being 2hr. late. Now waiting 17hrs. till my first available flight.

2.0 Poor

Andrew, Jul 2026

Flight was 2 hr. delay, making me miss my connection to my final flight home to Roanoke. Now 12:38am in the morning and I just got the first available ticket at 5:30 pm tomorrow evening. Sleeping in the airport.

6.0 Okay

Lane, Jul 2026

Internet didn’t work for this leg either. The seat was fine but didn’t have seatback screen, which I knew when I booked it. The biggest letdown is Deltas new policy on beverage/snack service not being served for flights less than 350 miles. I know this is a cost cutting measure, but how much does it really cost to give a drink and a snack for inflated airfare? I really am surprised that with Delta Comfort they don’t provide beverage/snack service given these seats cost extra to purchase. Really need to reconsider this, even if it’s for the Delta Comfort and above.

4.0 Mediocre

Lane, Jul 2026

I am a die hard Delta flyer, but they missed it on this flight. It was on their very dated 717-200 aircraft, which I knew when I booked it so I knew it wouldn’t have seatback screens. However, the internet was awful and it wouldn’t even send texts a lot of the time, much less even connect to the delta app. It was also very hot while in the air, which never happens. What was even more disappointing is that the crew only gave me cheezits and a beverage, even though I was in Delta Comfort. The main cabin fare gets these items. I didn’t get any kind of improved snacks and that was unacceptable. The crew wasn’t very visible at all either. If this was my first delta flight, it would be my last. I am just going to assume it was a one-off flight.

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KAYAK's insights & trends for Seattle flights with Delta

What is the cheapest month to fly with Delta to Seattle?

How far in advance should I book Delta flights to Seattle?

What is the cheapest flight to Seattle with Delta?

How many direct flights does Delta operate to Seattle every week?

What is the cheapest day to fly to Seattle?

What is the cheapest time of day to fly to Seattle with Delta?

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