Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Louisville to Seattle from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Seattle departing on 2/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Louisville to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Louisville to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Louisville to Seattle.

Cheap last minute flights

Planning a quick getaway from Louisville to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Louisville to Seattle

Find recent round-trip train or bus tickets from Louisville to Seattle.

All round-trip flight deals from Louisville to Seattle

The cheapest plane tickets from Louisville to Seattle found on KAYAK recently.
5:01 pm - 10:07 pmSDF-SEA
8h 06m1 stop
6:00 am - 5:35 pmSEA-SDF
8h 35m1 stop
$347Delta
Find Deal
Sat, Feb 1 - Sat, Feb 8
2:00 pm - 9:11 pmSDF-SEA
10h 11m2 stops
7:00 am - 5:06 pmSEA-SDF
7h 06m1 stop
$352United Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
2:00 pm - 9:11 pmSDF-SEA
10h 11m2 stops
9:20 am - 10:12 pmSEA-SDF
9h 52m2 stops
$357United Airlines
Find Deal
Sat, Feb 1 - Sat, Feb 8
6:40 am - 12:34 pmSDF-SEA
8h 54m1 stop
12:43 am - 10:29 amSEA-SDF
6h 46m1 stop
$377American Airlines
Find Deal
Wed, Feb 19 - Sat, Feb 22
11:09 am - 7:05 pmSDF-SEA
10h 56m1 stop
10:18 pm - 11:29 amSEA-SDF
10h 11m1 stop
$382American Airlines
Find Deal
Sat, Feb 15 - Fri, Feb 21
7:25 pm - 12:19 amSDF-SEA
31h 54m3 stops
8:30 am - 6:32 pmSEA-SDF
31h 02m3 stops
$412Spirit Airlines
Find Deal
Sun, Feb 2 - Wed, Feb 12
9:30 pm - 12:25 amSDF-SEA
29h 55m3 stops
7:47 pm - 11:46 pmSEA-SDF
24h 59m3 stops
$430Spirit Airlines
Find Deal
Fri, Feb 21 - Mon, Feb 24
6:50 am - 1:00 pmSDF-SEA
9h 10m1 stop
11:05 pm - 11:31 amSEA-SDF
9h 26m1 stop
$442Delta
Find Deal
Sun, Feb 2 - Sun, Feb 9
5:45 am - 10:36 amSDF-SEA
7h 51m1 stop
8:00 pm - 9:29 amSEA-SDF
10h 29m2 stops
$583Alaska Airlines
Find Deal
Wed, Jul 9 - Fri, Jul 18
4:47 pm - 11:07 pmSDF-SEA
9h 20m1 stop
8:00 pm - 9:25 amSEA-SDF
10h 25m2 stops
$634Alaska Airlines
Find Deal
Mon, Jun 23 - Mon, Jun 30
7:25 pm - 12:19 amSDF-SEA
31h 54m2 stops
$138Spirit Airlines
Find Deal
Fri, Feb 7
7:25 pm - 5:00 pmSDF-SEA
24h 35m3 stops
$151Spirit Airlines
Find Deal
Fri, Feb 7
3:41 pm - 9:18 pmSDF-SEA
8h 37m1 stop
$174American Airlines
Find Deal
Wed, Feb 12
5:00 am - 10:47 amSDF-SEA
8h 47m1 stop
$184American Airlines
Find Deal
Fri, Feb 7
7:20 am - 4:35 pmSDF-SEA
12h 15m2 stops
$214Southwest
Find Deal
Wed, Feb 12
3:25 pm - 9:02 pmSDF-SEA
8h 37m1 stop
$242United Airlines
Find Deal
Sun, Apr 20
7:35 am - 2:20 pmSDF-SEA
9h 45m1 stop
$244Delta
Find Deal
Sun, Mar 9
1:00 pm - 9:40 pmSDF-SEA
11h 40m1 stop
$254Southwest
Find Deal
Sun, Mar 9
10:15 am - 6:05 pmSDF-SEA
10h 50m2 stops
$259United Airlines
Find Deal
Sat, Mar 8
5:45 pm - 12:05 amSDF-SEA
9h 20m1 stop
$275Delta
Find Deal
Sat, Jun 21
7:25 pm - 12:19 amSDF-SEA
31h 54m2 stops
5:55 pm - 6:30 pmSEA-SDF
21h 35m3 stops
$919Spirit Airlines
Find Deal
Mon, Jan 20 - Wed, Jan 22
11:13 am - 4:55 pmSDF-SEA
8h 42m1 stop
8:24 am - 9:55 pmSEA-SDF
10h 31m1 stop
$927Alaska Airlines
Find Deal
Mon, Jan 20 - Sat, Jan 25
5:00 am - 10:31 amSDF-SEA
8h 31m1 stop
7:42 am - 9:55 pmSEA-SDF
11h 13m2 stops
$932Alaska Airlines
Find Deal
Mon, Jan 20 - Sat, Jan 25
6:50 am - 1:00 pmSDF-SEA
9h 10m1 stop
11:05 pm - 11:41 amSEA-SDF
9h 36m1 stop
$937Delta
Find Deal
Mon, Jan 20 - Sat, Jan 25
7:05 am - 12:29 pmSDF-SEA
8h 24m1 stop
7:42 am - 9:55 pmSEA-SDF
11h 13m2 stops
$942Alaska Airlines
Find Deal
Mon, Jan 20 - Sat, Jan 25
2:00 pm - 11:09 pmSDF-SEA
12h 09m2 stops
7:00 am - 8:37 pmSEA-SDF
10h 37m2 stops
$947United Airlines
Find Deal
Mon, Jan 20 - Sat, Jan 25
2:00 pm - 11:09 pmSDF-SEA
12h 09m2 stops
11:11 pm - 8:37 pmSEA-SDF
18h 26m3 stops
$952United Airlines
Find Deal
Mon, Jan 20 - Sat, Jan 25
5:34 pm - 12:19 amSDF-SEA
33h 45m3 stops
5:55 pm - 6:30 pmSEA-SDF
21h 35m3 stops
$1,000
Find Deal
Mon, Jan 20 - Wed, Jan 22
10:35 am - 4:26 pmSDF-SEA
8h 51m1 stop
11:17 pm - 2:00 pmSEA-SDF
11h 43m1 stop
$1,017United Airlines
Find Deal
Sun, Jan 19 - Tue, Jan 21
7:00 am - 1:55 pmSDF-SEA
9h 55m2 stops
7:08 am - 7:33 pmSEA-SDF
9h 25m1 stop
$1,022United Airlines
Find Deal
Sun, Jan 19 - Tue, Jan 21

American Airlines flights from Louisville to Seattle

Our best American Airlines deals on Louisville to Seattle flight tickets
American Airlines
Feb 19
SDF6:40 amLouisville Intl
8h 54m
1 stop
SEA12:34 pmSeattle/Tacoma Intl
Feb 22
SEA12:43 amSeattle/Tacoma Intl
6h 46m
1 stop
SDF10:29 amLouisville Intl
American Airlines
Feb 15
SDF11:09 amLouisville Intl
10h 56m
1 stop
SEA7:05 pmSeattle/Tacoma Intl
Feb 21
SEA10:18 pmSeattle/Tacoma Intl
10h 11m
1 stop
SDF11:29 amLouisville Intl
American Airlines
Feb 11
SDF6:35 amLouisville Intl
9h 07m
1 stop
SEA12:42 pmSeattle/Tacoma Intl
Feb 16
SEA12:25 amSeattle/Tacoma Intl
7h 04m
1 stop
SDF10:29 amLouisville Intl

Southwest flights from Louisville to Seattle

Our best Southwest deals on Louisville to Seattle flight tickets
Southwest
Feb 15
SDF1:15 pmLouisville Intl
12h 35m
2 stops
SEA10:50 pmSeattle/Tacoma Intl
Feb 21
SEA9:05 amSeattle/Tacoma Intl
10h 35m
1 stop
SDF10:40 pmLouisville Intl
Southwest
Feb 15
SDF1:15 pmLouisville Intl
12h 35m
2 stops
SEA10:50 pmSeattle/Tacoma Intl
Feb 21
SEA6:15 amSeattle/Tacoma Intl
13h 25m
2 stops
SDF10:40 pmLouisville Intl
Southwest
Feb 19
SDF4:10 pmLouisville Intl
9h 30m
2 stops
SEA10:40 pmSeattle/Tacoma Intl
Feb 23
SEA9:05 amSeattle/Tacoma Intl
10h 35m
1 stop
SDF10:40 pmLouisville Intl

See travel insights to Seattle from

How to get the cheapest flight ticket from Louisville to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Louisville to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $381. If you don’t want to visit Seattle in February, then you should wait until October to fly from Louisville, when ticket prices are also cheap, with an average price of $381.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Louisville is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $417. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Louisville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $575.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Louisville in the evening is the least expensive time of day to depart. momondo users have found prices as low as $436 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $526. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Louisville when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $469 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Louisville for as low as $373 on momondo.

How have Louisville to Seattle flight prices changed over time?

As of January 2025, prices for Louisville to Seattle flights are approximately 15% more expensive when compared to flights at the same time last year.

When to book flights from Louisville to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Seattle (SDF to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Seattle

Best Price Found

$138

Fastest flight time

6h 40m

Direct flights

None

Airports in Seattle

1 airport
The best one-way flight to Seattle from Louisville in the past 72 hours is $138. The best round-trip flight deal from Louisville to Seattle found on momondo in the last 72 hours is $347.
The fastest flight from Louisville to Seattle takes 6h 40m
There are no direct flights from Louisville to Seattle. Popular non-direct route for this connection is Louisville Intl Airport - Seattle/Tacoma Intl Airport.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • How far is Louisville Intl to Seattle/Tacoma Intl by plane?

    The distance between Louisville Intl and Seattle/Tacoma Intl is about 1938.2 mi. Flights usually cover this in 6h 40m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Louisville Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Louisville Intl Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Louisville Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Seattle?


Best airlines flying from Louisville to Seattle

Compare and see reviews for airlines that fly from Louisville to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $201Free CancellationRating
6.3
8,098 reviews
Search Spirit Airlines flights
Sun Country AirPriceFrom $238Free CancellationRating
7.0
384 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $335Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $335Free CancellationRating
8.0
8,511 reviews
Search Delta flights
SouthwestPriceFrom $353Free CancellationRating
8.1
4,659 reviews
Search Southwest flights
United AirlinesPriceFrom $366Free CancellationRating
7.4
8,965 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $416Free CancellationRating
8.0
9,681 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Tukwila
Federal Way
Lynnwood
Kirkland
Lakewood
Redmond
Puyallup
Fife
Shoreline
Centralia
Bothell
Cle Elum
Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Louisville to Seattle with flexible booking policies on momondo?

All flight searches from Louisville to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Louisville to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Louisville.

I’m not ready to book a flight from Louisville to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.


An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 1/21
Tue 1/28
Email me momondo's favorite deals

Find better results for your trip to the United States