Flight to San Diego County

View S$172 flight on Tue, 18 Aug, 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

Cheap round-trip flights to San Diego County

Prices were available within the past 7 days and start at S$172 for one-way flights and S$343 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 15 Jul - Tue, 28 Jul
BOS
Boston
SAN
San Diego
S$343 Return, found 20 hours ago
S$343
Return
found 20 hours ago
Select Alaska Airlines flight, departing Wed, 15 Jul from Boston to San Diego, returning Tue, 28 Jul, priced at S$343 found 20 hours ago
Delta
Sat, 4 Jul - Tue, 14 Jul
BOS
Boston
SAN
San Diego
S$343 Return, found 20 hours ago
S$343
Return
found 20 hours ago
Select Delta flight, departing Sat, 4 Jul from Boston to San Diego, returning Tue, 14 Jul, priced at S$343 found 20 hours ago
United
Tue, 30 Jun - Sat, 18 Jul
BOS
Boston
SAN
San Diego
S$472 Return, found 20 hours ago
S$472
Return
found 20 hours ago
Select United flight, departing Tue, 30 Jun from Boston to San Diego, returning Sat, 18 Jul, priced at S$472 found 20 hours ago
American Airlines
Mon, 29 Jun - Fri, 17 Jul
BOS
Boston
SAN
San Diego
S$472 Return, found 20 hours ago
S$472
Return
found 20 hours ago
Select American Airlines flight, departing Mon, 29 Jun from Boston to San Diego, returning Fri, 17 Jul, priced at S$472 found 20 hours ago
JetBlue Airways
Tue, 23 Jun - Fri, 26 Jun
BOS
Boston
SAN
San Diego
S$800 Return, found 20 hours ago
S$800
Return
found 20 hours ago
Select JetBlue Airways flight, departing Tue, 23 Jun from Boston to San Diego, returning Fri, 26 Jun, priced at S$800 found 20 hours ago
American Airlines
Sun, 21 Jun - Thu, 25 Jun
BOS
Boston
CLD
Carlsbad
S$1,154 Return, found 19 hours ago
S$1,154
Return
found 19 hours ago
Select American Airlines flight, departing Sun, 21 Jun from Boston to Carlsbad, returning Thu, 25 Jun, priced at S$1,154 found 19 hours ago
Air Canada
Sun, 28 Jun - Tue, 14 Jul
SIN
Singapore
SAN
San Diego
S$1,162 Return, found 3 days ago
S$1,162
Return
found 3 days ago
Select Air Canada flight, departing Sun, 28 Jun from Singapore to San Diego, returning Tue, 14 Jul, priced at S$1,162 found 3 days ago
Air Canada
Sun, 14 Jun - Sun, 21 Jun
SIN
Singapore
SNA
Orange County
S$1,300 Return, found 3 days ago
S$1,300
Return
found 3 days ago
Select Air Canada flight, departing Sun, 14 Jun from Singapore to Orange County, returning Sun, 21 Jun, priced at S$1,300 found 3 days ago
Lufthansa
Mon, 5 Apr - Mon, 12 Apr
SIN
Singapore
SAN
San Diego
S$1,332 Return, found 3 days ago
S$1,332
Return
found 3 days ago
Select Lufthansa flight, departing Mon, 5 Apr from Singapore to San Diego, returning Mon, 12 Apr, priced at S$1,332 found 3 days ago
Singapore Airlines
Wed, 17 Feb - Mon, 22 Feb
SIN
Singapore
PSP
Palm Springs
S$1,407 Return, found 2 days ago
S$1,407
Return
found 2 days ago
Select Singapore Airlines flight, departing Wed, 17 Feb from Singapore to Palm Springs, returning Mon, 22 Feb, priced at S$1,407 found 2 days ago
Book with confidence
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.

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.

Air Canada
Sun, 28 Jun - Tue, 14 Jul
SIN
Singapore
SAN
San Diego
S$1,162 Return, found 3 days ago
S$1,162
Return
found 3 days ago
Select Air Canada flight, departing Sun, 28 Jun from Singapore to San Diego, returning Tue, 14 Jul, priced at S$1,162 found 3 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 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$343.
How much is a flight to San Diego County?
If you were journeying one way from Boston (BOS), you could've scored a bargain seat for just S$172 in the last seven days. Return flights to San Diego County ranged from only S$343 to S$1,407 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$343 and S$1,407. 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.

Book with confidence

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.

Travel information

San Diego County Flights Information

Airlines serving
Delta, United, American Airlines, Alaska Airlines, Air Canada, Lufthansa, JetBlue Airways, STARLUX Airlines, Singapore Airlines
Roundtrip price
from S$343
San Diego County Flights Information

Explore a world of travel with Expedia

*Available to Expedia members.