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MDT - SEA

$118 Find cheap flights from Harrisburg to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harrisburg to Seattle departing on 8/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Tue 7/2
Tue 7/9

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harrisburg to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harrisburg to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 41,909,192 times on KAYAK, and here is why:

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Cheap flight deals from Harrisburg to Seattle (MDT-SEA)

 
These are the cheapest deals for flights from Harrisburg to Seattle currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Harrisburg to Seattle

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Harrisburg to Seattle.

Recent one-way flight deals from Harrisburg to Seattle

Only flying one-way? Below are some of the best one-way flight deals from Harrisburg to Seattle found on KAYAK recently.

Recent last minute flight deals from Harrisburg to Seattle

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Harrisburg to Seattle.

Recent direct flight deals from Harrisburg to Seattle

The latest deals for direct flights from Harrisburg to Seattle so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Harrisburg to Seattle

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

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:58 am - 7:31 pmMDT-SEA
10h 33m1 stop
8:00 am - 6:32 pmSEA-MDT
7h 32m1 stop
$256American Airlines
Find Deal
Thu, Sep 26 - Sat, Oct 5
11:59 am - 7:31 pmMDT-SEA
10h 32m2 stops
8:00 am - 6:32 pmSEA-MDT
7h 32m1 stop
$261American Airlines
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Thu, Sep 26 - Sat, Oct 5
6:05 am - 4:41 pmMDT-SEA
13h 36m2 stops
9:55 am - 11:51 pmSEA-MDT
10h 56m2 stops
$367Delta
Find Deal
Wed, Aug 28 - Wed, Sep 4
6:05 am - 4:41 pmMDT-SEA
13h 36m2 stops
11:52 am - 11:51 pmSEA-MDT
8h 59m1 stop
$412Delta
Find Deal
Wed, Aug 28 - Wed, Sep 4
6:56 pm - 8:09 pmMDT-SEA
28h 13m3 stops
5:15 pm - 6:06 pmSEA-MDT
21h 51m3 stops
Thu, Jul 4 - Wed, Jul 10
6:25 am - 1:41 pmMDT-SEA
10h 16m2 stops
6:45 am - 9:35 pmSEA-MDT
11h 50m2 stops
$447United Airlines
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Tue, Aug 27 - Fri, Sep 6
1:10 pm - 10:45 pmMDT-SEA
12h 35m2 stops
7:45 pm - 10:09 amSEA-MDT
11h 24m2 stops
$467United Airlines
Find Deal
Wed, Aug 14 - Tue, Aug 20
5:48 pm - 12:45 pmMDT-SEA
21h 57m2 stops
2:49 pm - 6:06 pmSEA-MDT
24h 17m3 stops
Thu, Sep 26 - Sat, Oct 5
6:12 pm - 11:59 pmMDT-SEA
8h 47m1 stop
8:25 am - 9:37 pmSEA-MDT
10h 12m1 stop
$548Alaska Airlines
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Tue, Jun 25 - Wed, Jul 10
6:12 pm - 11:59 pmMDT-SEA
8h 47m1 stop
9:35 pm - 10:08 amSEA-MDT
9h 33m1 stop
$629Alaska Airlines
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Mon, Jul 1 - Mon, Jul 8
5:50 pm - 10:22 pmMDT-SEA
7h 32m1 stop
$118United Airlines
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Sat, Aug 24
5:59 pm - 11:59 pmMDT-SEA
9h 00m1 stop
$148Delta
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Tue, Jun 11
6:52 am - 2:53 pmMDT-SEA
11h 01m1 stop
$156American Airlines
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Fri, Jun 7
6:04 pm - 11:53 pmMDT-SEA
8h 49m1 stop
$169Delta
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Fri, Aug 9
3:49 pm - 11:59 pmMDT-SEA
11h 10m2 stops
$174Delta
Find Deal
Tue, Jun 11
6:05 am - 12:58 pmMDT-SEA
9h 53m1 stop
$198United Airlines
Find Deal
Sun, Jun 9
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
$206United Airlines
Find Deal
Fri, Jun 7
6:04 pm - 11:53 pmMDT-SEA
8h 49m1 stop
$209Delta
Find Deal
Fri, Aug 9
3:35 pm - 11:06 pmMDT-SEA
10h 31m2 stops
$224American Airlines
Find Deal
Sat, Aug 24
6:12 pm - 11:59 pmMDT-SEA
8h 47m1 stop
$358Alaska Airlines
Find Deal
Sun, Jun 23
6:52 am - 2:53 pmMDT-SEA
11h 01m1 stop
9:40 pm - 9:28 amSEA-MDT
8h 48m1 stop
$525American Airlines
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Wed, Jun 5 - Fri, Jun 21
1:32 pm - 8:40 pmMDT-SEA
10h 08m2 stops
9:40 pm - 9:28 amSEA-MDT
8h 48m1 stop
$530American Airlines
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Wed, Jun 5 - Fri, Jun 21
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
11:59 pm - 12:03 pmSEA-MDT
33h 04m1 stop
$557United Airlines
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Fri, Jun 7 - Mon, Jun 24
3:49 pm - 11:59 pmMDT-SEA
11h 10m2 stops
10:00 am - 11:52 pmSEA-MDT
10h 52m2 stops
$558Delta
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Fri, Jun 7 - Fri, Jun 21
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
11:59 pm - 9:23 pmSEA-MDT
18h 24m1 stop
$576United Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 21
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
12:25 am - 9:23 pmSEA-MDT
17h 58m1 stop
$617United Airlines
Find Deal
Fri, Jun 7 - Thu, Jun 20
3:44 pm - 3:55 pmMDT-SEA
27h 11m3 stops
9:28 am - 3:36 pmSEA-MDT
27h 08m2 stops
Fri, Jun 7 - Fri, Jun 21
3:44 pm - 3:55 pmMDT-SEA
27h 11m3 stops
8:59 pm - 8:19 pmSEA-MDT
20h 20m3 stops
Fri, Jun 7 - Fri, Jun 21
6:05 am - 11:07 amMDT-SEA
8h 02m1 stop
3:35 pm - 12:03 pmSEA-MDT
17h 28m2 stops
$641United Airlines
Find Deal
Fri, Jun 7 - Mon, Jun 24
3:49 pm - 11:59 pmMDT-SEA
11h 10m2 stops
12:25 am - 3:09 pmSEA-MDT
11h 44m2 stops
$1,699Delta
Find Deal
Fri, Jun 7 - Thu, Jun 20

Flights from Harrisburg to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Harrisburg to Seattle to help you find the cheapest flights, the best time to fly and much more.

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

The average price of all flights from Harrisburg to Seattle clicked on KAYAK for each day over the last 12 months.
For Harrisburg to Seattle, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Seattle back to Harrisburg, the best deals are generally found on Tuesday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Harrisburg to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Harrisburg to Seattle is November, where tickets cost $297 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $731 and $715 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Harrisburg to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Harrisburg to Seattle, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Which airlines provide the cheapest flights from Harrisburg to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Harrisburg to Seattle were found on American Airlines ($256) and Delta ($367). United Airlines proposed the cheapest one-way flight at $118.

Good to know

Low season

January

High season

August

Cheapest flight

$118
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 0% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Harrisburg to Seattle

  • What is the cheapest flight from Harrisburg to Seattle?

    In the last 3 days, the lowest price for a flight from Harrisburg to Seattle was $118 for a one-way ticket and $256 for a round-trip.

  • Do I need a passport to fly between Harrisburg and Seattle?

    A passport is not required to fly from Harrisburg to Seattle.

  • Which airports will I be using when flying from Harrisburg to Seattle?

    On your way to Seattle, you’ll fly out from Harrisburg. You’ll be landing at Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Harrisburg to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Harrisburg to Seattle?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Harrisburg and Seattle, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Harrisburg to Seattle, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Harrisburg to Seattle are Delta and Alaska Airlines. With an average price for the route of $551 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $816 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Harrisburg to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Harrisburg to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Harrisburg to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Harrisburg is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Harrisburg to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Harrisburg with another airline. Booking your flights between Harrisburg and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harrisburg to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Harrisburg up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Harrisburg to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Harrisburg to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Harrisburg to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9197 reviews
8.2Boarding
7.9Comfort
8.6Crew
7.3Entertainment
7.3Food
Airline reviews

The flight itself went well, except it left 1.5 hours late, and about 10 of us missed our Alaska Airlines connection by minutes; they wouldn't hold the plane, even though our arrival delay was caused by Alaska. No gluten-free options among the snacks; you had to order meals separately, but there was no consideration for food sensitivities. NO TELEVISION on a flight from Washington, DC to Seattle or from Seattle to Anchorage. I didn't know that ANY airlines offering cross-country flights didn't have screens for entertainment. This alone is a "never again" for me.

6.0 GoodAnonymous, May 2024ANC - SEA
Read more about Alaska Airlines reviews

The flight itself went well, except it left 1.5 hours late, and about 10 of us missed our Alaska Airlines connection by minutes; they wouldn't hold the plane, even though our arrival delay was caused by Alaska. No gluten-free options among the snacks; you had to order meals separately, but there was no consideration for food sensitivities. NO TELEVISION on a flight from Washington, DC to Seattle or from Seattle to Anchorage. I didn't know that ANY airlines offering cross-country flights didn't have screens for entertainment. This alone is a "never again" for me.

I have to eat gluten-free due to celiac disease, but so far no Alaska Air flight has offered a gluten-free option for the snack given out with free drinks. It seems like that wouldn't be too hard to do.

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

Full flight where I had another passenger sitting in middle seat who said that he had lost 250 lbs from 500. The stewardess on exiting the flight advise me that I was going to receive a refund. I thought she was talking about another passenger. The stewardess saw that to make him comfortable I had lifted the armrest and flew for 5 hours to Seattle from Reagan DCA with a portion of his body on my seat. I survived. I flight to remember!!!!

the flight was delayed almost 3 hours and not one time was we told that it was delayed or why. I had asked one of the crew members why it was delayed, 20 minutes after the flight was supposed to take off, and was told that they had no idea what was going on and that they had not been told anything. this is FRIGHTENING!!!! No excuse!!

Flights were on time. Check in was fine. Crew members were pleasant.

I would have liked it to have been easier to order food for the flight. My son was not happy with the snack pack I bought him and it was a very long flight for a little boy to go without food.

Ground staff at LAX was very helpful. The Alaska lounge food and service is better than most airport lounges. I think the Staff are well trained polite and actually seem happy to work there. Great service Thanks 🙏 Jjk

The flight was very very delayed and arrived much later than planned. There was no communication about why or when our arrival would be. I would expect better and open communication about the flight but there was none. Also just pretzels? How disappointing.

I got to my destination but no comforts no snacks nothing. Like herding cows!!

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

On time take off…US cabins look tired and need of refresh!

Fantastic. Smooth boarding with an infant. Never experienced it with any other carriers.

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

It was a good flight. Of course it was full, but it went well.

Same basket of unhealthy prepackaged snacks (junk food) which was depleted by the time it got to my row!!

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

Book cheap flights from Harrisburg to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Harrisburg to Seattle found on KAYAK in the last 72 hours.
8/24Sat
1 stopUnited Airlines
7h 32mMDT-SEA
$118
6/11Tue
1 stopDelta
9h 00mMDT-SEA
$148
6/7Fri
1 stopAmerican Airlines
11h 01mMDT-SEA
$156
8/9Fri
1 stopDelta
8h 49mMDT-SEA
$169
6/11Tue
2 stopsDelta
11h 10mMDT-SEA
$174
6/9Sun
1 stopUnited Airlines
9h 53mMDT-SEA
$198
6/7Fri
1 stopUnited Airlines
8h 02mMDT-SEA
$206
8/9Fri
1 stopDelta
8h 49mMDT-SEA
$209
8/24Sat
2 stopsAmerican Airlines
10h 31mMDT-SEA
$224
6/23Sun
1 stopAlaska Airlines
8h 47mMDT-SEA
$358

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Last minute flights from Harrisburg to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Harrisburg to Seattle that are departing in the next 10 days.
6/5Wed
multi-stopAmerican Airlines
11h 01mMDT-SEA
6/21Fri
multi-stopAmerican Airlines
8h 48mSEA-MDT
$525
6/5Wed
multi-stopAmerican Airlines
10h 08mMDT-SEA
6/21Fri
multi-stopAmerican Airlines
8h 48mSEA-MDT
$530
6/7Fri
multi-stopUnited Airlines
8h 02mMDT-SEA
6/24Mon
multi-stopUnited Airlines
33h 04mSEA-MDT
$557
6/7Fri
multi-stopDelta
11h 10mMDT-SEA
6/21Fri
multi-stopDelta
10h 52mSEA-MDT
$558
6/7Fri
multi-stopUnited Airlines
8h 02mMDT-SEA
6/21Fri
multi-stopUnited Airlines
18h 24mSEA-MDT
$576
6/7Fri
multi-stopUnited Airlines
8h 02mMDT-SEA
6/20Thu
multi-stopUnited Airlines
17h 58mSEA-MDT
$617
6/7Fri
multi-stop
27h 11mMDT-SEA
6/21Fri
multi-stop
27h 08mSEA-MDT
$622
6/7Fri
multi-stop
27h 11mMDT-SEA
6/21Fri
multi-stop
20h 20mSEA-MDT
$630
6/7Fri
multi-stopUnited Airlines
8h 02mMDT-SEA
6/24Mon
multi-stopUnited Airlines
17h 28mSEA-MDT
$641
6/7Fri
multi-stopDelta
11h 10mMDT-SEA
6/20Thu
multi-stopDelta
11h 44mSEA-MDT
$1,699

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Harrisburg - Seattle Flights

Departure:

Harrisburg (MDT)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Harrisburg

Cabin classes: