Flight to San Diego County

View S$100 flight on Mon, 27 Apr, 2026Opens in a new window

Popular airlines to San Diego County

  • American Airlines

  • Alaska Airlines

  • United

  • Delta

  • Frontier Airlines

  • Southwest Airlines

  • JetBlue Airways

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Cheap round-trip flights to San Diego County

Prices were available within the past 7 days and start at S$100 for one-way flights and S$148 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 25 Apr - Thu, 7 May
SEA
Seattle
SAN
San Diego
S$148 Return, found 20 hours ago
S$148
Return
found 20 hours ago
Select Delta flight, departing Sat, 25 Apr from Seattle to San Diego, returning Thu, 7 May, priced at S$148 found 20 hours ago
Alaska Airlines
Wed, 11 Mar - Wed, 11 Mar
SEA
Seattle
SAN
San Diego
S$173 Return, found 1 day ago
S$173
Return
found 1 day ago
Select Alaska Airlines flight, departing Wed, 11 Mar from Seattle to San Diego, returning Wed, 11 Mar, priced at S$173 found 1 day ago
Delta
Thu, 12 Mar - Mon, 16 Mar
SEA
Seattle
SNA
Orange County
S$262 Return, found 1 day ago
S$262
Return
found 1 day ago
Select Delta flight, departing Thu, 12 Mar from Seattle to Orange County, returning Mon, 16 Mar, priced at S$262 found 1 day ago
United
Mon, 27 Apr - Fri, 1 May
SEA
Seattle
SAN
San Diego
S$326 Return, found 16 hours ago
S$326
Return
found 16 hours ago
Select United flight, departing Mon, 27 Apr from Seattle to San Diego, returning Fri, 1 May, priced at S$326 found 16 hours ago
American Airlines
Mon, 16 Mar - Wed, 18 Mar
SEA
Seattle
SAN
San Diego
S$350 Return, found 1 day ago
S$350
Return
found 1 day ago
Select American Airlines flight, departing Mon, 16 Mar from Seattle to San Diego, returning Wed, 18 Mar, priced at S$350 found 1 day ago
American Airlines
Mon, 27 Apr - Fri, 1 May
PAE
Seattle
SAN
San Diego
S$414 Return, found 16 hours ago
S$414
Return
found 16 hours ago
Select American Airlines flight, departing Mon, 27 Apr from Seattle to San Diego, returning Fri, 1 May, priced at S$414 found 16 hours ago
United
Mon, 27 Apr - Fri, 1 May
SEA
Seattle
CLD
Carlsbad
S$452 Return, found 16 hours ago
S$452
Return
found 16 hours ago
Select United flight, departing Mon, 27 Apr from Seattle to Carlsbad, returning Fri, 1 May, priced at S$452 found 16 hours ago
United
Fri, 10 Apr - Tue, 14 Apr
SEA
Seattle
PSP
Palm Springs
S$515 Return, found 3 days ago
S$515
Return
found 3 days ago
Select United flight, departing Fri, 10 Apr from Seattle to Palm Springs, returning Tue, 14 Apr, priced at S$515 found 3 days ago
Alaska Airlines
Sun, 22 Feb - Wed, 25 Feb
PAE
Seattle
PSP
Palm Springs
S$754 Return, found 4 days ago
S$754
Return
found 4 days ago
Select Alaska Airlines flight, departing Sun, 22 Feb from Seattle to Palm Springs, returning Wed, 25 Feb, priced at S$754 found 4 days ago
China Airlines
Sun, 3 May - Sat, 9 May
SIN
Singapore
SAN
San Diego
S$1,149 Return, found 1 day ago
S$1,149
Return
found 1 day ago
Select China Airlines flight, departing Sun, 3 May from Singapore to San Diego, returning Sat, 9 May, priced at S$1,149 found 1 day ago

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Expedia offers flights to San Diego County to meet every traveller'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.

San Diego County Flights Information

Airlines serving
Delta, United, American Airlines, Alaska Airlines, China Airlines, Lufthansa
Roundtrip price
from S$148

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 travellers 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 S$148.
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 S$100 in the last seven days. Return flights to San Diego County ranged from only S$148 to S$1,149 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?
The most economical day to fly domestically tends to be a Friday. Monday is frequently found to be the most expensive day to fly domestically. For international flights, choosing to fly on a Thursday, the cheapest day of the week, could score you savings of up to 25%. Sunday tends to be the most expensive 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 S$148 and S$1,149. 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 travelling 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 kilometres 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 kilometres 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.

Trending flights to San Diego County

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

China Airlines
Sun, 3 May - Sat, 9 May
SIN
Singapore
SAN
San Diego
S$1,149 Return, found 1 day ago
S$1,149
Return
found 1 day ago
Select China Airlines flight, departing Sun, 3 May from Singapore to San Diego, returning Sat, 9 May, priced at S$1,149 found 1 day ago
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