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£38+ Direct flights from San Diego

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/1. 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.
SAN — LHR
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Direct flights from San Diego

Enter your travel dates to find the best prices.

Cheapest flights from San Diego
Explore the most affordable flight options available from San Diego. Find the lowest fares based on data from user searches, with prices last updated on 21 November 2025.

Thu 22/106:30SAN - DEN
Nonstop2h 35mFrontier
Mon 26/122:29DEN - SAN
Nonstop2h 39mFrontier
Deal found 20/11£44
Thu 18/1206:30SAN - DEN
Nonstop2h 31mUnited Airlines
Sat 24/115:56DEN - SAN
Nonstop2h 32mUnited Airlines
Deal found 19/11£83
Sat 3/106:25SAN - DEN
Nonstop2h 38mFrontier
Sat 10/121:45DEN - SAN
Nonstop2h 31mFrontier
Deal found 19/11£86
Sun 4/120:14SAN - DEN
Nonstop2h 45mAlaska Airlines
Sat 10/108:04DEN - SAN
Nonstop2h 46mAlaska Airlines
Deal found 19/11£90
Sat 20/1215:44SAN - DEN
Nonstop2h 34mAlaska Airlines
Fri 2/106:00DEN - SAN
Nonstop2h 51mAlaska Airlines
Deal found 20/11£105
Sun 21/1220:14SAN - DEN
Nonstop2h 45mAlaska Airlines
Tue 30/1218:48DEN - SAN
Nonstop2h 40mAlaska Airlines
Deal found 19/11£120
Wed 7/111:10SAN - DEN
Nonstop2h 31mUnited Airlines
Mon 12/107:45DEN - SAN
Nonstop2h 35mUnited Airlines
Deal found 19/11£129
Sun 21/1220:14SAN - DEN
Nonstop2h 45mAlaska Airlines
Fri 26/1206:00DEN - SAN
Nonstop2h 51mAlaska Airlines
Deal found 20/11£139
Sun 21/1206:30SAN - DEN
Nonstop2h 31mUnited Airlines
Thu 25/1221:00DEN - SAN
Nonstop2h 32mUnited Airlines
Deal found 20/11£143
Sat 14/314:16SAN - DEN
Nonstop2h 32mAlaska Airlines
Sat 21/312:30DEN - SAN
Nonstop2h 26mAlaska Airlines
Deal found 20/11£147
Sun 28/1220:14SAN - DEN
Nonstop2h 45mAlaska Airlines
Fri 2/106:00DEN - SAN
Nonstop2h 51mAlaska Airlines
Deal found 19/11£155
Thu 12/215:38SAN - DFW
Nonstop3h 01mAmerican Airlines
Sun 15/222:42DFW - SAN
Nonstop3h 17mAmerican Airlines
Deal found 20/11£164

Find direct flights from San Diego within your budget

 
Use the slider to find direct flights from San Diego within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 858,174 searches. This data was last updated on 21 November 2025.

Fly to

Heathrow

Route

Depart

Return

Price

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 22/1

06:30-10:05

Nonstop2h 35m

Denver Intl

Mon 26/1

22:29-00:08

Nonstop2h 39m

£44

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 18/12

06:30-10:01

Nonstop2h 31m

Denver Intl

Sat 24/1

15:56-17:28

Nonstop2h 32m

£83

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sun 4/1

20:14-23:59

Nonstop2h 45m

Denver Intl

Fri 9/1

19:39-21:14

Nonstop2h 35m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Fri 2/1

21:40-01:00

Nonstop2h 20m

Denver Intl

Tue 6/1

08:35-10:10

Nonstop2h 35m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 22/12

20:14-23:59

Nonstop2h 45m

Denver Intl

Thu 25/12

18:48-20:28

Nonstop2h 40m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 11/12

19:00-22:30

Nonstop2h 30m

Denver Intl

Mon 15/12

16:05-17:35

Nonstop2h 30m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sun 21/12

20:50-00:15

Nonstop2h 25m

Denver Intl

Thu 25/12

06:40-08:15

Nonstop2h 35m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Sat 20/12

15:44-19:18

Nonstop2h 34m

Denver Intl

Mon 22/12

18:48-20:28

Nonstop2h 40m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Mon 15/12

16:02-19:24

Nonstop2h 22m

Denver Intl

Mon 22/12

18:48-20:28

Nonstop2h 40m

£90

San DiegoDenver

SAN - DEN

SANDEN

San Diego

Thu 18/12

15:44-19:18

Nonstop2h 34m

Denver Intl

Mon 22/12

18:48-20:28

Nonstop2h 40m

£90

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 60 results
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Best time to book a flight from San Diego

Have a flexible travel schedule? Discover the best time to fly from San Diego with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines flying non-stop to San Diego

Get insights into the airlines that provide direct flights from San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight from San Diego. Reviews last updated Cheapflights.
Get a feel of what it's like to fly with British Airways from San Diego by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,533 reviews
Check prices

Overall

6.7

Crew

7.6

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,533 reviews
British Airways
6.7
Okay
7,533 reviews
Check prices

Overall

6.7

Crew

7.6

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

Access useful and relevant information related to your journey from San Diego. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 21 November 2025.

  • Where can you fly direct from San Diego?

    Currently, the most popular direct flight destination from San Diego is Sacramento.

  • How much are direct flights from San Diego?

    On average, a one-way direct flight from San Diego will cost users approximately £221. If you're looking for a direct round-trip flight from San Diego, you can expect to pay around £395.

  • How long is a direct flight from San Diego?

    While the flight duration depends heavily on the destination, on average, travelers can expect non-stop flights from San Diego to last approximately 3h 57m on average. The quickest direct flight from San Diego at this time departs from San Diego (1h 40m), while the longest leaves from San Diego (10h 35m).

  • What is the best time of year to fly direct from San Diego?

    If you're seeking the lowest price on a direct flight from San Diego, September is worth consideration as prices are at their lowest, on average. In terms of the number of daily non-stop flights, January offers travelers the most options.

See more FAQs

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