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Find cheap one-way flights from Harrisburg to Seattle starting at US$143.

Whether you’re going for a one-way or round-trip to Seattle, we’ve got you covered! Check out these different flight options from Harrisburg below.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Harrisburg to Seattle Flight time & Schedules

Flight info.
Departure
Arrival
Weekly Schedule
  1. DL1255

    06:00

    MDT

    2.0h

    08:03

    ATL

    SMTWTFS
  2. DL629

    12:15

    ATL

    5.5h

    14:45

    SEA

    SMTWTFS
  3. DL1255

    06:00

    MDT

    2.0h

    08:03

    ATL

    SMTWTFS
  4. DL774

    09:40

    ATL

    5.6h

    12:16

    SEA

    SMTWTFS
  5. UA2684

    06:10

    MDT

    2.3h

    07:29

    ORD

    SMTWTFS
  6. UA1705

    09:00

    ORD

    4.7h

    11:44

    SEA

    SMTWTFS
  7. AA5843

    07:41

    MDT

    2.4h

    09:04

    ORD

    SMTWTFS
  8. AA2398

    10:09

    ORD

    4.6h

    12:47

    SEA

    SMTWTFS
  9. AS6653

    08:02

    MDT

    2.3h

    09:20

    ORD

    S--WT-S
  10. AS462

    10:00

    ORD

    4.7h

    12:43

    SEA

    SMTWTFS
  11. AS4709

    10:59

    MDT

    2.4h

    12:22

    ORD

    S--WT-S
  12. AS335

    17:53

    ORD

    4.7h

    20:34

    SEA

    SMTWTFS
  13. UA4268

    14:30

    MDT

    0.9h

    15:27

    IAD

    SMTWT-S
  14. UA1730

    17:19

    IAD

    6.0h

    20:19

    SEA

    SMTWTFS
  15. AS4553

    15:20

    MDT

    0.9h

    16:12

    PHL

    SMTWTFS
  16. AS443

    18:59

    PHL

    6.0h

    21:58

    SEA

    SMTWTFS
  17. DL3974

    17:00

    MDT

    1.6h

    18:33

    DTW

    SMTWTFS
  18. DL565

    20:20

    DTW

    5.1h

    22:25

    SEA

    SMTWTFS
  19. UA3587

    17:32

    MDT

    2.4h

    18:55

    ORD

    SMTWTFS
  20. UA2211

    19:59

    ORD

    4.7h

    22:42

    SEA

    SMTWTFS

When is the cheapest time to book flights from Harrisburg to Seattle?

These price trend charts carefully monitor and predict how flight prices from Harrisburg to Seattle will change. Keep a close eye on them to understand when the best time to buy your tickets is.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Harrisburg (HAR) to Seattle (SEA) the cheapest?

    Airlines adjust prices for flights from Harrisburg to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Harrisburg (HAR) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around $550.
  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.

How to find a cheap flight from Harrisburg to Seattle

Understanding the common pitfalls when booking your flight tickets can help you save massively when it comes time to fly. We’ve listed our six essential steps to keep in mind when you’re booking flight tickets to help you find the best price.
1
Being flexible with your dates to get the cheapest Harrisburg to Seattle ticket.
Tap "Date" on flight search bar to scan through the calender for Harrisburg to Seattle airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sat, Mar 8 at US$143 for one-way flights.
2
Compare cheap Harrisburg to Seattle flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Harrisburg to Seattle. The cheapest airline operating is Delta Air Lines.
3
Set up a Price Alert
By setting up a Price Alert for your Harrisburg to Seattle route, you can easily track the price of your airline tickets from Harrisburg to Seattle without manually checking every day.
4
Don't miss cheap Harrisburg to Seattle flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com free app and search for cheap flight tickets from Harrisburg to Seattle to get exclusive deals for you.

Harrisburg to Seattle Flight Information

Cheapest nonstop flight price$142
Off-season for travelFebruary
Peak season for travelNovember
Flight distance3,674.36 km
Popular airlineUnited Airlines