Cheap flights from Oakland to Seoul from $675 OAK → ICN

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $871 to $1,652.

At $871, the cheapest return found recently is at the low end of that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 6-night return fares leaving within 3 days of 20 Feb 2027 to compare.

Every date we hold

35 fares on 14 departure dates

Which month looks cheapest?

February 2027 is the cheapest month — from $871.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 39 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $650 to $893.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 15 Apr 2027 to compare.

Every date we hold

9 fares on 8 departure dates

Which month looks cheapest?

April 2027 is the cheapest month — from $675.

Return

Fares 90 to 179 days before departure were typically 23% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 90 to 179 days before departure were typically 16% lower than 60 to 89 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (39 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Oakland to Seoul?

The cheapest return found recently is $871 with Alaska Airlines, 20 Feb 2027 to 26 Feb 2027, found 3 days ago. The cheapest return fare on each of 14 departure dates is usually $990 to $1,827.

How much is a one-way flight from Oakland to Seoul?

The cheapest one-way found recently is $675 with Alaska Airlines, 15 Apr 2027, found 2 days ago. The cheapest one-way fare on each of 8 departure dates is usually $681 to $806.

What is the cheapest month to fly from Oakland to Seoul?

February 2027 is the cheapest month for a return, from $871, 20 Feb 2027 to 26 Feb 2027, found 3 days ago. April 2027 is the cheapest month for a one-way, from $675, 15 Apr 2027, found 2 days ago.

How far ahead should I book a flight from Oakland to Seoul?

In 49 days of prices between 24 Sept and 11 Nov, return fares 90 to 179 days before departure were typically 23% lower than 0 to 6 days before departure. In 39 days of prices between 24 Sept and 11 Nov, one-way fares 90 to 179 days before departure were typically 16% lower than 60 to 89 days before departure.

How long is the flight from Oakland to Seoul?

The cheapest one-way found recently, with Alaska Airlines on 15 Apr 2027, takes 23 h 25 min with 2 stops.

Which airlines have the cheapest flights from Oakland to Seoul?

Between 13 Nov and 26 Apr 2027, Alaska Airlines has the cheapest return on 13 of the 14 departure dates we hold, and Southwest Airlines on 1. Between 11 Feb 2027 and 15 Apr 2027, Alaska Airlines has the cheapest one-way on 6 of the 8 departure dates we hold, and Southwest Airlines on 2.