$479 Find Cheap Flights from South Korea to Oregon - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from South Korea to Oregon departing on 10/21. 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.
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1 adult, Economy, 0 bags

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Cheap Flights from South Korea to Oregon

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from South Korea to Oregon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from South Korea to Oregon

Thu, Sep 17 - Sat, Oct 10
Delta Logo
7:00 pm - 5:09 pm-
14h 09m
Delta Logo
3:34 pm - 4:50 pm-
33h 16m
$800Delta
Sat, Oct 3 - Thu, Oct 15
Air Canada Logo
5:45 pm - 7:06 pm-
17h 21m
Air Canada Logo
7:45 pm - 4:05 pm-
28h 20m
$849Air Canada
Sat, Oct 3 - Thu, Oct 15
Air Canada Logo
5:45 pm - 7:06 pm-
17h 21m
Air Canada Logo
7:45 pm - 4:05 pm-
28h 20m
$852Air Canada
Tue, Sep 8 - Fri, Sep 18
Multiple Airlines Logo
1:00 pm - 8:36 pm-
23h 36m
Multiple Airlines Logo
11:02 am - 4:30 am-
25h 28m
$858Multiple Airlines
Thu, Sep 17 - Sat, Oct 10
Alaska Airlines Logo
7:35 pm - 8:47 pm-
17h 12m
Alaska Airlines Logo
9:29 pm - 5:30 pm-
28h 01m
$862Alaska Airlines
Thu, Sep 17 - Sat, Oct 10
Alaska Airlines Logo
7:35 pm - 8:47 pm-
17h 12m
Alaska Airlines Logo
7:37 pm - 5:30 pm-
29h 53m
$867Alaska Airlines
Fri, Oct 2 - Thu, Oct 15
Multiple Airlines Logo
1:55 am - 9:31 am-
23h 36m
Multiple Airlines Logo
3:30 pm - 4:05 pm-
32h 35m
$895Multiple Airlines
Fri, Sep 18 - Fri, Sep 25
Delta Logo
7:00 pm - 10:02 pm-
19h 02m
Delta Logo
7:00 am - 4:50 pm-
17h 50m
$922Delta
Wed, Oct 21 - Sat, Oct 24
Korean Air Logo
7:00 pm - 5:01 pm-
14h 01m
Korean Air Logo
6:05 am - 5:55 pm-
19h 50m
$1,237Korean Air
Wed, Oct 21 - Sat, Oct 24
Korean Air Logo
7:00 pm - 5:01 pm-
14h 01m
Korean Air Logo
6:05 am - 5:55 pm-
19h 50m
$1,238Korean Air
Booking Insights

KAYAK's insights & trends for flights to Oregon

Get data-powered insights and trends for flights to Oregon to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from South Korea to Oregon?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from South Korea to Oregon, 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 South Korea to Oregon is November, when tickets cost $504 (return) on average. On the other hand, the most expensive months are January and July, when the average cost of round-trip tickets is $1,555 and $1,003 respectively.

Good to know

Low season

October

Cheapest flight

$479
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly with an average 23% increase in price.
Flight from Seoul Incheon Airport to Portland

FAQs for booking flights from South Korea to Oregon

  • How does KAYAK find such low prices on flights from South Korea to Oregon?

    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 South Korea to Oregon.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from South Korea to Oregon 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 South Korea to Oregon?

    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 from South Korea to Oregon with an airline and back with another airline.

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

    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 from South Korea to Oregon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from South Korea to Oregon

 
See real verified KAYAK customer reviews for airlines flying to Oregon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to Oregon. 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 South Korea to Oregon? 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.
8.4
Korean AirOverall score based on 1222 reviews
8.5Boarding
8.7Crew
8.1Food
8.2Entertainment
8.3Comfort
Airline reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

10.0 ExcellentFiruz, Apr 2026
Read more Korean Air reviews

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

One of the flight attendants stepped on my foot. I was on the aisle seat. A lady inside needed to get out. So Instood. Just then, a flight attentendant came wuicklybtheoughbthe aisle and stepprd on my sock covered toes. I let out a small sound. She stopped momentarily, but didn’t ask how I was just took off of the aisle. Never came back to see how I was. Fortunately, I was not really hurt other than a slight soreness in my toes. But I found that to be very negligent.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

On time departure & early arrival made the long day much better

It was insanely hot on the flight - especially before takeoff and then when we landed - but I was literally sweating in flight.

Alaska changed their departure time 4 (!!!) times, then couldn't find my luggage from a direct flight from Spokane to Portland. There were 11 passengers who didn't get our luggage & had to wait 40 minutes for Alaska to find our luggage. Alaska should reimburse everyone their airfare for such inexcusable service.

Previously there were complimentary beverages served on short flights with Alaska Airlines. It was a very nice amenity and would love it if Alaska Airlines brought back that service!!

Quick, easy, on time. I couldn't ask for more great staff

No entertainment or food on a short flight, even in first class

Delayed flight, but there was good communication about the delay. The flight attendant saying over the intercom; ‘the ten people on their way to Maui need to contact me now or I’ll be very upset’ seemed overly dramatic and unproductive

Excellent crew, free wi-fi, good experience. But we were in Row 30 and were song the sat called to board. It’s RIDICULOUS that the end of the plane would be among the last to board IT MAKES NO SENSE.

The flight boarded and landed on time. There were frequent snacks & beverages, The pilot spoke in a clear calm voice, The leg room was cramped and there were no screens (entertainment) on this long ~6 hr. flight.

Initial flight was delayed, which caused me to miss my only connecting flight.

This a short easy flight. No food or drink but that was not an issue since we were only in the air for 35 minutes.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

One of the best airlines that I flew on, the flight attendants were very attentive and professional.

Check in process was terrible. Lady at counter didn’t know what she was doing

They boarded very early. We rushed to transfer and got to the gate 5 minutes after boarding was scheduled to start, however they were making a last call and holding signs for “all customers” to board. They were helpful at the gate, but I was surprised to see that we were some of the last to board at 5 minutes after scheduled boarding was to begin.

The crew on this leg continue to be extremely helpful with my wife’s mobility issues. They also came by many many times to ensure we were comfortable and had drink some food.

The Pilot was one of the best I've had, very informative about turbulence and got us to our destination early

I liked the cleanness in the bathroom and good crew on board and at boarding gates. There was no Hindi (Bollywood) movies. The entertainment can be improved as it is one of the worst one I saw when I compared it with other airlines. The Mumbai to Amsterdam flight did not have any food for my family which does not contain eggs in it though we have selected “Hindu Asian vegetarian meal”

Friendly boarding crew. Better could have been a bit more substantial food for this 3 plus hour flight.

they were super helpful. Agents at the desk got me on an earlier flight and I was able to get home several hours earlier.

Amazing service, with enthusiastic crew members, and some breathtaking views of Vancouver. No IFE though, as it is only a 1 hour flight on a regional Turboprop jet.

Could not understand what the attendant was saying during his announcements.

Once again our Air Canada flight was delayed! I'm hopeful competition arrives with other airlines soon and maybe they will make a better effort to be on time!

Boarding was OK. The overhead bins on the Havilland 400 are smaller than the allowable carry on bag sizes, making the bags to be jammed in and as a result slowing the boarding process.

My luggage was lost and didn't arrive on my flight

Not so good. Got seat no 12 e. Squeezed between two people. No entertainment, hard to move around. Did not enjoyed that flight.

Flight delayed, Poor communication. Uncomfortable/cramped gate area. Insistence by AC staff that our carry-on bags had to be checked due to allegedly small size of overhead bins (not true, as we saw when we boarded). Awful-tasting snacks.

There was no entertainment at our seats. The flight was comfortable and we had leg room. The snack we had was really good.

The original connecting flight from Vancouver to Portland was canceled and then delayed. I ended up waiting for almost seven hours instead of three.

Everything you need to know for your flight to Oregon

Cabin class types available on flights to Oregon

Cabin classes available on flights to Oregon. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.