Cheap Flights to San Diego County from ₩145,200

View ₩145,200 flight on Fri, Jun 12, 2026Opens in a new window

Popular airlines to San Diego County

  • Alaska Airlines

  • American Airlines

  • United

  • Delta

  • Frontier Airlines

  • Southwest Airlines

  • JetBlue Airways

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to San Diego County?

Prices were available within the past 7 days and start at ₩145,200 for one-way flights and ₩201,900 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Jun 12 - Mon, Jun 15
SEA
Seattle
SAN
San Diego
₩201,900 Roundtrip, found 7 hours ago
₩201,900
Roundtrip
found 7 hours ago
Select Delta flight, departing Fri, Jun 12 from Seattle to San Diego, returning Mon, Jun 15, priced at ₩201,900 found 7 hours ago
Delta
Tue, May 26 - Tue, Jun 2
SEA
Seattle
SAN
San Diego
₩244,200 Roundtrip, found 1 day ago
₩244,200
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, May 26 from Seattle to San Diego, returning Tue, Jun 2, priced at ₩244,200 found 1 day ago
Delta
Tue, May 19 - Wed, May 27
SEA
Seattle
SAN
San Diego
₩275,600 Roundtrip, found 19 hours ago
₩275,600
Roundtrip
found 19 hours ago
Select Delta flight, departing Tue, May 19 from Seattle to San Diego, returning Wed, May 27, priced at ₩275,600 found 19 hours ago
Delta
Thu, May 21 - Sun, May 24
SEA
Seattle
SAN
San Diego
₩320,200 Roundtrip, found 5 days ago
₩320,200
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, May 21 from Seattle to San Diego, returning Sun, May 24, priced at ₩320,200 found 5 days ago
Delta
Wed, Jun 3 - Sun, Jun 7
SEA
Seattle
SAN
San Diego
₩321,900 Roundtrip, found 4 days ago
₩321,900
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jun 3 from Seattle to San Diego, returning Sun, Jun 7, priced at ₩321,900 found 4 days ago
Delta
Fri, Jun 26 - Sun, Jun 28
SEA
Seattle
SAN
San Diego
₩322,700 Roundtrip, found 16 hours ago
₩322,700
Roundtrip
found 16 hours ago
Select Delta flight, departing Fri, Jun 26 from Seattle to San Diego, returning Sun, Jun 28, priced at ₩322,700 found 16 hours ago
United
Mon, Jun 1 - Mon, Jun 8
SEA
Seattle
SAN
San Diego
₩396,000 Roundtrip, found 16 hours ago
₩396,000
Roundtrip
found 16 hours ago
Select United flight, departing Mon, Jun 1 from Seattle to San Diego, returning Mon, Jun 8, priced at ₩396,000 found 16 hours ago
American Airlines
Tue, May 26 - Tue, Jun 2
SEA
Seattle
SAN
San Diego
₩454,300 Roundtrip, found 1 day ago
₩454,300
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, May 26 from Seattle to San Diego, returning Tue, Jun 2, priced at ₩454,300 found 1 day ago
Korean Air
Mon, May 18 - Tue, Jul 7
ICN
Seoul
SNA
Orange County
₩1,795,300 Roundtrip, found 18 hours ago
₩1,795,300
Roundtrip
found 18 hours ago
Select Korean Air flight, departing Mon, May 18 from Seoul to Orange County, returning Tue, Jul 7, priced at ₩1,795,300 found 18 hours ago
Air Canada
Fri, Nov 13 - Sat, Nov 21
ICN
Seoul
PSP
Palm Springs
₩1,942,600 Roundtrip, found 5 days ago
₩1,942,600
Roundtrip
found 5 days ago
Select Air Canada flight, departing Fri, Nov 13 from Seoul to Palm Springs, returning Sat, Nov 21, priced at ₩1,942,600 found 5 days ago

Trending flights to San Diego County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, May 20 - Wed, Aug 5
ICN
Seoul
SNA
Orange County
₩1,246,000 Roundtrip, found 5 days ago
₩1,246,000
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, May 20 from Seoul to Orange County, returning Wed, Aug 5, priced at ₩1,246,000 found 5 days ago

Frequently asked questions

Can I cancel my flight booking to San Diego County due to COVID-19?
If you haven't booked yet, look through the terms and conditions of your preferred carrier. If you've already purchased your flight to San Diego County, click through to our Customer Service Portal. It will help you determine which COVID-19 policies apply to your booking and provide advice on the next steps.
What's the best way to find cheap flights to San Diego County that have flexible change policies?
It's as easy as can be with Expedia. Step 1: Type in your travel details and click "Search." Step 2: Check the "No change fee" box directly below the "Flexible change policies" heading to the left of the screen. Step 3. Snag your flexible and cheap flight to San Diego County.
What are some of the general tips for travelers to San Diego County during the COVID-19 outbreak?
With new COVID-19 rules and measures in place, travel looks a little different at present. Here's what you need to know before you pack your bags for San Diego County:
  • Find out if any travel restrictions apply to your origin and destination before locking in your flight. Also check if there are any special conditions you'll need to follow on arrival, such as proof of a negative COVID-19 test.
  • Wear a face mask even during airport screening. A TSA employee will ask you to temporarily lower your mask to verify your identity.
  • To reduce the risk of cross-contamination, place your boarding pass on the scanner yourself and then hold it up for inspection. Do not hand your boarding pass directly to a TSA officer.
  • You're allowed to take one container of hand sanitizer up to 12 oz (350 ml) in your hand luggage. This will need to be removed for X-ray scanning.
  • Put any personal items (keys, wallet and phone) in your carry-on instead of a bin to reduce handling during screening.
  • If you're bringing food through the security checkpoint, place it in a clear plastic bag and then into a screening bin. This lessens the likelihood that a TSA agent will need to touch your food container or carry-on bag for inspection.
  • Find out if any travel restrictions apply to your origin and destination before locking in your flight. Also check if there are any special conditions you'll need to follow on arrival, such as proof of a negative COVID-19 test.
  • Wear a face mask even during airport screening. A TSA employee will ask you to temporarily lower your mask to verify your identity.
  • To reduce the risk of cross-contamination, place your boarding pass on the scanner yourself and then hold it up for inspection. Do not hand your boarding pass directly to a TSA officer.
  • You're allowed to take one container of hand sanitizer up to 12 oz (350 ml) in your hand luggage. This will need to be removed for X-ray scanning.
  • Put any personal items (keys, wallet and phone) in your carry-on instead of a bin to reduce handling during screening.
  • If you're bringing food through the security checkpoint, place it in a clear plastic bag and then into a screening bin. This lessens the likelihood that a TSA agent will need to touch your food container or carry-on bag for inspection.
Which airlines fly to San Diego County?
Let American Airlines take you there. This leading carrier runs 759 services each month to San Diego Intl. Airport (SAN), a San Diego County gateway.
How can I find cheap tickets to San Diego County?
Book in advance, travel on a cheaper day, avoid peak travel periods — there's no shortage of ways! Another one is to make use of Expedia's "flexible dates" function. Search for your San Diego County flight, then compare the cheapest prices for nearby dates. In the last seven days, the best price for a flight to San Diego County was ₩201,900.
How much is a flight to San Diego County?
If you were journeying one way from Seattle (SEA), you could've scored a bargain seat for just ₩145,200 in the last seven days. Return flights to San Diego County ranged from only ₩201,900 to ₩1,942,600 over the same period.
What are the most popular airports to fly into in San Diego County?
San Diego Intl. Airport (SAN) is the main gateway for those hoping to explore San Diego County. Around 6709 flights every month touch down at this airport.
When is the cheapest time to fly to San Diego County?
Start your domestic trip on a Tuesday to boost your chances of saving on your flights. Friday is often the most expensive day to fly. For international flights, jet out on a Thursday to score up to 25% cheaper flights. Monday tends to be the costliest day to fly internationally.
How much is a plane ticket to San Diego County?
In the last seven days, seats to San Diego County ranged between ₩201,900 and ₩1,942,600. Prices depend on a number of things, particularly the departure time, seating class, airline and when you make your booking.
Which airlines with flights to San Diego County employ COVID-19 cleanliness policies?
As passengers and cabin crew start traveling once again, nearly all airlines have implemented physical distancing and other precautionary measures to help combat COVID-19. Here are just a few examples:
  • Southwest Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Alaska Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • American Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Southwest Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • Alaska Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
  • American Airlines - this airline is known for providing passenger masks and cleaning with disinfectant.
What are the best things to do in San Diego County?
  • Packed with culture, energy and excitement, Carlsbad is an excellent place to kick off your San Diego County adventure. Tour popular attractions like Legoland California, hit up the stores or wine and dine your way around some of this destination's inviting restaurants and bars. What you decide to do is up to you!
  • When selecting what sort of clothes to pack for your trip, take into account that Carlsbad has a mediterranean climate. For a better idea of what to expect, study the weather before you set off.
  • Roughly 14 kilometers to the north of Carlsbad, Oceanside also deserves to be high on your itinerary. Noteworthy sights at this location include Mission San Luis Rey Church — don't forget to drop by.
  • Packed with culture, energy and excitement, Carlsbad is an excellent place to kick off your San Diego County adventure. Tour popular attractions like Legoland California, hit up the stores or wine and dine your way around some of this destination's inviting restaurants and bars. What you decide to do is up to you!
  • When selecting what sort of clothes to pack for your trip, take into account that Carlsbad has a mediterranean climate. For a better idea of what to expect, study the weather before you set off.
  • Roughly 14 kilometers to the north of Carlsbad, Oceanside also deserves to be high on your itinerary. Noteworthy sights at this location include Mission San Luis Rey Church — don't forget to drop by.

Book with confidence

About San Diego County

Expedia offers flights to San Diego County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to San Diego County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About San Diego County

Explore a world of travel with Expedia

*Available to Expedia members.