MDT - SEA

$200 Find Cheap Flights from Harrisburg 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
$399
Typical prices: $367-$573
American Airlines
Wed 12/12Sun 12/16
MDT - SEA • 1 stop
Cheapest one-way
$200
Typical prices: $229-$389
American Airlines
Tue 1/16
MDT - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Harrisburg 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 38% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 24% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Dallas/Fort Worth (DFW)
Cheapest • Avg $418 (round-trip)
Detroit Metropolitan Wayne County (DTW)
Shortest trip • 7h 25m (one-way)
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Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Harrisburg to Seattle (MDT-SEA)

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

Recent round-trip flight deals from Harrisburg to Seattle

Sat, Dec 12 - Wed, Dec 16
American Airlines Logo
12:04 pm - 8:31 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 27m1 stop Chicago O'Hare Intl
American Airlines Logo
10:51 am - 10:28 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
8h 37m1 stop Chicago O'Hare Intl
$399American Airlines
Fri, Dec 11 - Tue, Dec 15
American Airlines Logo
6:08 am - 12:19 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 11m1 stop Philadelphia
American Airlines Logo
10:27 am - 10:54 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 27m1 stop Dallas/Fort Worth
$399American Airlines
Thu, Nov 26 - Wed, Dec 2
United Airlines Logo
6:30 am - 12:19 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 49m1 stop Chicago O'Hare Intl
United Airlines Logo
10:48 am - 8:54 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 06m1 stop Chicago O'Hare Intl
$399United Airlines
Sat, Jan 16 - Sat, Jan 23
American Airlines Logo
6:47 am - 3:41 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 54m1 stop Dallas/Fort Worth
American Airlines Logo
7:00 am - 5:56 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
7h 56m1 stop Charlotte Douglas
$399American Airlines
Sat, Dec 5 - Sat, Dec 12
Delta Logo
12:24 pm - 6:43 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
9h 19m1 stop Detroit Metropolitan Wayne County
Delta Logo
1:36 pm - 11:10 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 34m1 stop Detroit Metropolitan Wayne County
$401Delta
Sat, Dec 5 - Wed, Dec 16
Delta Logo
6:00 am - 11:10 amMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 10m1 stop Detroit Metropolitan Wayne County
Delta Logo
1:36 pm - 11:10 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
6h 34m1 stop Detroit Metropolitan Wayne County
$401Delta
Thu, Jan 14 - Tue, Jan 19
United Airlines Logo
8:35 am - 4:38 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
11h 03m2 stops Chicago O'Hare Intl San Francisco
United Airlines Logo
7:00 am - 7:11 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 11m1 stop Chicago O'Hare Intl
$404United Airlines
Wed, Dec 9 - Sat, Dec 12
United Airlines Logo
2:00 pm - 6:46 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
7h 46m1 stop Chicago O'Hare Intl
United Airlines Logo
7:30 pm - 10:03 amSEA  Seattle/Tacoma Intl-MDT Harrisburg
11h 33m2 stops San Francisco Chicago O'Hare Intl
$404United Airlines
Tue, Dec 1 - Tue, Dec 15
Alaska Airlines Logo
6:03 am - 12:00 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
8h 57m1 stop Chicago O'Hare Intl
Alaska Airlines Logo
9:50 am - 10:28 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 38m2 stops Boise Air Term. Gowen Fld Chicago O'Hare Intl
$680Alaska Airlines
Wed, Dec 2 - Wed, Dec 16
Alaska Airlines Logo
7:02 am - 4:54 pmMDT  Harrisburg-SEA Seattle/Tacoma Intl
12h 52m2 stops Chicago O'Hare Intl Boise Air Term. Gowen Fld
Alaska Airlines Logo
9:50 am - 10:28 pmSEA  Seattle/Tacoma Intl-MDT Harrisburg
9h 38m2 stops Boise Air Term. Gowen Fld Chicago O'Hare Intl
$686Alaska Airlines
Booking Insights

Price, demand and travel trends for Harrisburg 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 Harrisburg to Seattle?

Round-trip flights from Harrisburg to Seattle typically range from $367 to $573. The lowest price found in the past 5 days was $399, on American Airlines.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Harrisburg to Seattle. It’s 21% cheaper than the average day, while Sunday is the most expensive, with prices 29% higher.

What’s the cheapest month to fly from Harrisburg to Seattle?

•February is the cheapest month to fly from Harrisburg to Seattle at $359 round-trip.
•June ($638) and July ($498) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 77% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Harrisburg to Seattle the cheapest?

Flights from Harrisburg to Seattle are cheapest 20 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Harrisburg to Seattle flights

Low season

January

Cheapest flight

$200
Beat the crowds with an average 45% drop in travelers.
The most popular month to fly with an average 49% increase in travelers.
One-way flight from Harrisburg to Seattle

When to book flights from Harrisburg to Seattle

Are your dates flexible? Find out the best times to travel from Harrisburg 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 Harrisburg 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 Harrisburg to Seattle?

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

    • Economy Class
    • First Class

  • How long is a flight from Harrisburg to Seattle?

    A nonstop flight from Harrisburg to Seattle takes 00m, covering 2,289 miles.

  • Do I need a passport to fly from Harrisburg 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 Harrisburg to Seattle flight?

    Round-trip flights from Harrisburg to Seattle range from $367 to $573, with an average of $475 over the past 12 months. Anything below $367 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 16% above the $475 route average. Book 20 weeks before departure for the lowest fares.

  • Have flight prices from Harrisburg 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 $399 to $1,533. That means the highest observed fare was about 4x higher than the lowest one.

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

    One-way fares from Harrisburg to Seattle are currently higher than usual. Average one-way flight prices are about $354, which is 22% above 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:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

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

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

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

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

    • Chicago O'Hare Intl (ORD) - 74% of one-stop connections
    • Philadelphia (PHL) - 9% of one-stop connections
    • Charlotte Douglas (CLT) - 6% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 4% of one-stop connections

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

    Yes. Flexible dates can save you up to 39% on flights from Harrisburg to Seattle. Saturday is the cheapest departure day at $378 round-trip on average, while Sunday is the most expensive at $614, a difference of $236.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 7h 25m, compared with 7h 55m via Washington, D.C. Dulles Intl (IAD) and 8h 14m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Harrisburg and Seattle?

    Seattle is 3 hours behind Harrisburg (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.

Your guide to booking Harrisburg 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 Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $378, about $236 less than Sunday fares (38% 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 38% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Harrisburg to Seattle trip for February. Fares historically average $359 round-trip in that month - typically $279 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

More options for your flight from Harrisburg to Seattle

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

Car rentals in Seattle
Hotels in Seattle
Vacations in Seattle