SDF - SEA

$150 Find Cheap Flights from Louisville to Seattle - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$299
Typical prices: $419-$583
American Airlines
Sun 10/14Sun 10/21
SDF - SEA • 1 stop
Cheapest one-way
$150
Typical prices: $239-$399
American Airlines
Sun 10/7
SDF - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Louisville and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
20 weeks
in advance
Our data shows that travelers who book at least 20 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 38% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Charlotte Douglas (CLT)
Cheapest • Avg $370 (round-trip)
Chicago Midway (MDW)
Shortest trip • 7h 06m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to Seattle (SDF-SEA)

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

Recent round-trip flight deals from Louisville to Seattle

Wed, Oct 21 - Wed, Oct 28
American Airlines Logo
1:21 pm - 7:44 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 23m1 stop Dallas/Fort Worth
American Airlines Logo
7:30 am - 8:28 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
9h 58m1 stop Dallas/Fort Worth
$299American Airlines
Sat, Oct 31 - Tue, Nov 3
American Airlines Logo
11:49 am - 6:06 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 17m1 stop Charlotte Douglas
American Airlines Logo
12:47 pm - 11:34 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 47m1 stop Dallas/Fort Worth
$299American Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
2:12 pm - 8:37 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 25m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:43 pm - 10:32 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 49m1 stop Denver Intl
$299United Airlines
Wed, Oct 21 - Sat, Oct 24
Delta Logo
7:05 am - 12:22 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 17m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:10 pm - 9:59 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 49m1 stop Detroit Metropolitan Wayne County
$299Delta
Sat, Nov 7 - Sat, Nov 14
United Airlines Logo
8:00 am - 4:12 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
11h 12m2 stops Denver Intl Los Angeles
United Airlines Logo
7:00 am - 5:00 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 00m1 stop Chicago O'Hare Intl
$304United Airlines
Wed, Oct 21 - Tue, Oct 27
Southwest Logo
6:25 am - 1:35 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 10m2 stops Las Vegas Harry Reid Intl Sacramento Intl
Southwest Logo
12:10 am - 10:05 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 55m1 stop Chicago Midway
$305Southwest
Wed, Oct 21 - Fri, Oct 23
Southwest Logo
3:00 pm - 10:40 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 40m2 stops Dallas Love Field Denver Intl
Southwest Logo
12:10 am - 10:20 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 10m1 stop Chicago Midway
$305Southwest
Wed, Nov 4 - Mon, Nov 9
Delta Logo
5:57 pm - 11:17 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 20m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 6:11 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
9h 11m1 stop Minneapolis St Paul
$320Delta
Sat, Oct 31 - Mon, Nov 9
Alaska Airlines Logo
10:54 am - 8:26 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
12h 32m2 stops Dallas/Fort Worth San Diego
Alaska Airlines Logo
11:42 pm - 9:38 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 56m1 stop Chicago O'Hare Intl
$624Alaska Airlines
Mon, Nov 2 - Mon, Nov 9
Alaska Airlines Logo
6:21 am - 2:31 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
11h 10m2 stops Chicago O'Hare Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
12:19 pm - 11:34 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 15m1 stop Dallas/Fort Worth
$624Alaska Airlines
Booking Insights

Price, demand and travel trends for Louisville to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Louisville to Seattle with more confidence.

How much is a round-trip flight from Louisville to Seattle?

Round-trip flights from Louisville to Seattle start at $299. Prices are below average for this route right now, with typical round-trip fares ranging from $419 to $583. The lowest price found in the past 5 days was $299 on American Airlines.

What's the cheapest day of the week to fly from Louisville to Seattle?

Saturday is the cheapest day of the week to fly from Louisville to Seattle, it is 6% cheaper than the average day. Friday is the most expensive day with flight prices 6% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Louisville to Seattle?

•January is the cheapest month to fly from Louisville to Seattle at $299 round-trip.
•June ($588) and July ($563) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 96% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Louisville to Seattle the cheapest?

Flights from Louisville to Seattle are cheapest 20 weeks before departure. Booking in this window typically costs about 31% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Louisville to Seattle flights

Low season

February

Cheapest flight

$150
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Louisville to Seattle

When to book flights from Louisville to Seattle

Are your dates flexible? Find out the best times to travel from Louisville to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Louisville to Seattle flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • How do I get to downtown Seattle from Seattle–Tacoma International Airport (SEA)?

    SEA is connected to downtown Seattle via the LINK Light Rail system at the Airport Parking Garage, Level 4, which operates every 6 to 15 minutes on weekdays and 10 to 15 minutes on weekends and holidays. The ride to downtown Seattle takes around 40 minutes. You can also take the King County Metro buses, which connect the airport to downtown Seattle. Other options include the Sound Transit express buses, taxis, car rentals, ridesharing, and hotel shuttles.

  • Which airlines offer an unaccompanied minor service on flights from Louisville to Seattle?

    American Airlines, United Airlines, and Delta Airlines offer an unaccompanied minor service for children flying alone from Louisville to Seattle. This service is mandatory for children aged 8 to 14 and optional for children aged 15 to 17 on all airlines. Children below 8 are only allowed to travel alone on direct flights. Your child will be escorted and receive necessary help throughout the flight.

  • What assistance does Louisville Muhammad Ali International Airport (SDF) offer travelers with limited mobility?

    Travelers with special needs or reduced mobility flying through Louisville Muhammad Ali International Airport (SDF) can access several services and amenities, including accessible parking, wheelchair assistance, accessible restrooms, specially-designed ramps, elevators, and the GoodMaps program to enable travelers with low vision to move through the terminal safely. For wheelchair assistance, contact your airline when making your reservation.

  • Are there hotels near Seattle–Tacoma International Airport (SEA)?

    For hotels close to Seattle–Tacoma International Airport (SEA), you can check into Hilton Seattle Airport & Conference Center, Radisson Hotel Seattle Airport, Crowne Plaza Seattle Airport, Red Roof Inn Seattle Airport SEATAC, La Quinta Inn & Suites Seattle SeaTac Airport, Red Lion Hotel Seattle Airport, which offer a free shuttle from the airport.

  • Which airports can I use when flying from Louisville to Seattle?

    Flights from Louisville to Seattle usually depart from Louisville Intl (SDF) and arrive at Seattle/Tacoma Intl (SEA).

  • What cabin classes can I book on flights from Louisville to Seattle?

    Two cabin classes are available on flights from Louisville to Seattle:

    • Economy Class
    • First Class

  • Which airports do connecting flights from Louisville to Seattle pass through?

    One-stop flights from Louisville to Seattle most commonly connect through:

    • Chicago O'Hare Intl (ORD) - 38% of one-stop connections
    • Chicago Midway (MDW) - 22% of one-stop connections
    • Dallas/Fort Worth (DFW) - 15% of one-stop connections
    • Minneapolis St Paul (MSP) - 8% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Louisville to Seattle?

    On the Louisville to Seattle route, being flexible with your departure day can save you up to 12%. Saturday is the cheapest day at $457 round-trip on average, while Friday is the most expensive at $515: a $58 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

  • How expensive are last-minute Louisville to Seattle flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 34% above the route average of $483. Book 20 weeks before departure for the lowest fares.

  • How long is a flight from Louisville to Seattle?

    A nonstop flight from Louisville to Seattle takes 0h 00m, covering 1,939 miles.

  • Do I need a passport to fly from Louisville to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Louisville to Seattle changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $299 to $2,304. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Louisville to Seattle looking right now?

    One-way fares from Louisville to Seattle are currently lower than usual. Average one-way flight prices are about $212, which is 31% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Louisville to Seattle?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 7h 06m, compared with 7h 17m via Denver Intl (DEN) and 7h 28m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Louisville and Seattle?

    Seattle is 3 hours behind Louisville (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:
    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Dollar

  • How much should I expect to pay for a Louisville to Seattle flight?

    Round-trip flights from Louisville to Seattle range from $419 to $583, with an average of $483 over the past 12 months. Anything below $419 counts as a good deal.

Your guide to booking Louisville to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Saturday departure instead of Friday. On this route, Saturday flights average $457 - about $58 less than Friday (11% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 20 weeks before you fly. On this route, that window historically saves about 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Louisville to Seattle trip for January. Fares historically average $299 round-trip in that month - typically $289 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.
    - Seattle Airport Marriott
    - Coast Gateway Hotel
    - Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport
  • The Louisville (SDF) to Seattle (SEA) route is mainly served by one-stop flights. Common layover cities for one-stop flights on this route include Chicago (ORD), Las Vegas (LAS), Dallas (DFW), Detroit (DTW), Denver (DEN), Minneapolis (MSP), Charlotte (CLT), Los Angeles (LAX), Houston (IAD), and Atlanta (ATL). The layover city depends on the flight route.
  • For Business Class flights from Louisville to Seattle, consider booking American Airlines, United Airlines, or Delta Airlines, which offer this travel option on some of their connecting flights on this route. General Business Class benefits and amenities these airlines offer include spacious cabins with comfortable seats, special baggage allowance, premium dining, priority check-in and boarding, in-flight entertainment, and access to specific lounges.
  • American Airlines, United Airlines, Spirit Airlines, and Delta Airlines have no maximum weight limit for carry-on bags on flights from Louisville to Seattle. However, your carry-on bag and personal item shouldn’t exceed the required dimensions and perfectly fit in the overhead compartment and underneath the seat in front of you.
  • If you’re mindful of the environment, you can book Spirit Airlines, American Airlines, United Airlines, Alaska Airlines, or United Airlines, which have reduced carbon emissions on their flights from Louisville to Seattle.
  • From Seattle, you can fly to other cities within the U.S., like Los Angeles, San Francisco, Dallas, Houston, Phoenix, Chicago, New York City, Las Vegas, and Denver, or international destinations like London, Vancouver, Toronto, Tokyo, Dubai, Seoul, Beijing, Amsterdam, Frankfurt, and Mexico City.

More options for your flight from Louisville to Seattle

Complete your trip to Seattle with a hotel stay or car rental

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