SDF - SEA

$156 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
$311
Typical prices: $415-$576
American Airlines
Mon 11/19Fri 11/23
SDF - SEA • 1 stop
Cheapest one-way
$156
Typical prices: $234-$394
Southwest
Wed 11/21
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
6 weeks
in advance
Our data shows that travelers who book at least 6 weeks in advance save around 34% 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 $457 (round-trip)
Chicago Midway (MDW)
Shortest trip • 7h 06m (one-way)
Insights
Insights
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We hope you love your trip to Seattle!
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

Thu, Nov 19 - Mon, Nov 23
American Airlines Logo
10:01 am - 2:25 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 24m1 stop Chicago O'Hare Intl
American Airlines Logo
11:36 pm - 9:28 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 52m1 stop Chicago O'Hare Intl
$311American Airlines
Thu, Nov 19 - Mon, Nov 23
American Airlines Logo
7:00 am - 2:51 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 51m1 stop Dallas/Fort Worth
American Airlines Logo
11:36 pm - 9:28 amSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 52m1 stop Chicago O'Hare Intl
$311American Airlines
Thu, Nov 19 - Mon, Nov 23
Delta Logo
7:50 am - 2:50 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 00m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:00 am - 4:54 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 54m1 stop Atlanta Hartsfield-Jackson
$311Delta
Tue, Nov 24 - Tue, Dec 1
Delta Logo
8:05 am - 2:30 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
9h 25m1 stop Atlanta Hartsfield-Jackson
Delta Logo
9:50 am - 9:17 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 27m1 stop Detroit Metropolitan Wayne County
$311Delta
Thu, Nov 26 - Thu, Dec 3
United Airlines Logo
8:00 am - 4:32 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
11h 32m2 stops Denver Intl Los Angeles
United Airlines Logo
5:05 am - 2:17 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
6h 12m1 stop Denver Intl
$316United Airlines
Wed, Nov 25 - Wed, Dec 2
United Airlines Logo
5:57 pm - 11:07 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
8h 10m1 stop Chicago O'Hare Intl
United Airlines Logo
5:05 am - 4:39 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 34m2 stops Denver Intl Chicago O'Hare Intl
$316United Airlines
Mon, Dec 7 - Thu, Dec 10
Southwest Logo
6:50 am - 5:50 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
14h 00m1 stop Denver Intl
Southwest Logo
5:40 am - 6:55 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
10h 15m1 stop Phoenix Sky Harbor Intl
$322Southwest
Fri, Dec 4 - Sun, Dec 13
Southwest Logo
7:35 pm - 11:35 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 00m1 stop Chicago Midway
Southwest Logo
12:15 am - 12:15 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
9h 00m2 stops Chicago Midway Nashville Intl
$336Southwest
Thu, Dec 3 - Sat, Dec 5
Alaska Airlines Logo
1:25 pm - 8:35 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
10h 10m1 stop Dallas/Fort Worth
Alaska Airlines Logo
9:32 am - 9:00 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
8h 28m1 stop Dallas/Fort Worth
$655Alaska Airlines
Thu, Mar 25 - Thu, Apr 1
Alaska Airlines Logo
1:14 pm - 5:51 pmSDF  Louisville Intl-SEA Seattle/Tacoma Intl
7h 37m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
10:52 am - 9:31 pmSEA  Seattle/Tacoma Intl-SDF Louisville Intl
7h 39m1 stop Chicago O'Hare Intl
$655Alaska 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 with more confidence.

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

Round-trip flights from Louisville to Seattle typically range from $415 to $576. The lowest price found in the past 5 days was $311, on American Airlines.

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

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Louisville to Seattle. It’s 6% cheaper than the average day, while Friday is the most expensive, with prices 6% higher.

What’s 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 ($565) 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 flights from Louisville to Seattle the cheapest?

Flights from Louisville to Seattle are cheapest 6 weeks before departure. Booking in this window typically costs about 34% 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

$156
Beat the crowds with an average 64% drop in travelers.
The most popular month to fly with an average 104% increase in travelers.
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

  • 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

  • How long is a flight from Louisville to Seattle?

    A nonstop flight from Louisville to Seattle takes 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.

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

    Round-trip flights from Louisville to Seattle range from $415 to $576, with an average of $482 over the past 12 months. Anything below $415 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 32% above the $482 route average. Book 6 weeks before departure for the lowest fares.

  • 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 $311 to $1,267. That means the highest observed fare was about 4x 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 $201, which is 35% below the typical average for this route.

  • 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 averaging $61 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • 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).

  • 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) - 39% of one-stop connections
    • Chicago Midway (MDW) - 24% of one-stop connections
    • Dallas/Fort Worth (DFW) - 15% of one-stop connections
    • Minneapolis St Paul (MSP) - 7% of one-stop connections

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

    Yes. Flexible dates can save you up to 12% on flights from Louisville to Seattle. Monday is the cheapest departure day at $456 round-trip on average, while Friday is the most expensive at $515, a difference of $59.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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 14m via Denver Intl (DEN) and 7h 29m 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 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 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.

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 are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $456, about $59 less than Friday fares (11% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 6 weeks before you fly. On this route, that window historically saves about 34% 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.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • 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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