Cheap flights from San Diego

We are watching 64 routes out of San Diego. The cheapest fare we can vouch for today is €17, and for each one we say whether today is a good moment or you should wait.

See this fare · San Francisco €17 Phoenix €17 Denver €27

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Where to fly from San Diego

Wed

13 Jan

San Diego → San Francisco

Frontier Airlines Based on 931 observations ✈ Direct

Frontier Airlines Based on 234 observations ✈ Direct

Frontier Airlines Based on 146 observations ✈ Direct

€27

Fri

1 Jan

San Diego → Las Vegas

Frontier Airlines Based on 405 observations ✈ Direct

€28

Mon

16 Nov

San Diego → Dallas-Fort Worth

Frontier Airlines Based on 176 observations ✈ Direct

Frontier Airlines Based on 88 observations 1 stop

Alaska Airlines Based on 156 observations ✈ Direct

Alaska Airlines Based on 99 observations ✈ Direct

Southwest Airlines Based on 346 observations ✈ Direct

€58

Fri

29 Jan

San Diego → Salt Lake City

Frontier Airlines Based on 8 observations 1 stop

Alaska Airlines Based on 70 observations ✈ Direct

jetBlue Based on 89 observations ✈ Direct

€83

Mon

7 Dec

San Diego → Cincinnati / Covington

Frontier Airlines Based on 13 observations 1 stop

Frontier Airlines Based on 73 observations 1 stop

Frontier Airlines Based on 51 observations 3 stops

Frontier Airlines Based on 106 observations 2 stops

€91

Mon

7 Dec

San Diego → Baltimore

Frontier Airlines Based on 74 observations 2 stops

American Airlines Based on 137 observations ✈ Direct

€95

Tue

15 Dec

San Diego → Fort Lauderdale

Alaska Airlines Based on 48 observations ✈ Direct

€95

Mon

28 Dec

San Diego → Los Angeles

Frontier Airlines Based on 132 observations 1 stop

Frontier Airlines Based on 61 observations 1 stop

€97

Mon

7 Dec

San Diego → Washington

Frontier Airlines Based on 72 observations 1 stop

jetBlue Based on 366 observations 1 stop

€106

Sat

14 Nov

San Diego → Charlotte

American Airlines Based on 121 observations ✈ Direct

€112

Mon

4 Jan

San Diego → Oklahoma City

Frontier Airlines Based on 29 observations 1 stop

WestJet Based on 52 observations 1 stop

€114

Wed

30 Dec

San Diego → Indianapolis

Southwest Airlines Based on 31 observations 1 stop

Frontier Airlines Based on 20 observations 1 stop

€122

Fri

13 Nov

San Diego → Santa Barbara

Alaska Airlines Based on 28 observations ✈ Direct

Frontier Airlines Based on 18 observations 3 stops

€129

Tue

10 Nov

San Diego → Santa Rosa

Alaska Airlines Based on 15 observations ✈ Direct

Allegiant Air Based on 39 observations 1 stop

€135

Fri

13 Nov

San Diego → Bellingham

Frontier Airlines Based on 11 observations 1 stop

€138

Thu

21 Jan

San Diego → Melbourne

Frontier Airlines Based on 12 observations 2 stops

Breeze Airways Based on 77 observations 1 stop

€152

Sat

5 Dec

San Diego → Mexico City

Volaris Based on 115 observations 1 stop

Alaska Airlines Based on 129 observations ✈ Direct

€154

Mon

23 Nov

San Diego → Guadalajara

Frontier Airlines Based on 11 observations 1 stop

Alaska Airlines Based on 13 observations ✈ Direct

€159

Tue

17 Nov

San Diego → Pittsburgh

Alaska Airlines Based on 8 observations 1 stop

€179

Fri

13 Nov

San Diego → Vancouver

Air Canada Based on 75 observations ✈ Direct

Frontier Airlines Based on 8 observations 1 stop

Frontier Airlines Based on 31 observations 2 stops

€204

Sat

28 Nov

San Diego → Greenville/Greer/Spartanburg

American Airlines Based on 10 observations 1 stop

Frontier Airlines Based on 11 observations 2 stops

Alaska Airlines Based on 29 observations ✈ Direct

€228

Sat

14 Nov

San Diego → Puerto Vallarta

Alaska Airlines Based on 38 observations ✈ Direct

jetBlue Based on 8 observations 1 stop

Air Canada Rouge Based on 47 observations 1 stop

€239

Thu

19 Nov

San Diego → Palm Springs

Alaska Airlines Based on 37 observations 1 stop

Breeze Airways Based on 14 observations 2 stops

€247

Mon

18 Jan

San Diego → Copenhagen

Frontier Airlines Based on 14 observations 3 stops

jetBlue Based on 35 observations 1 stop

Frontier Airlines Based on 27 observations 1 stop

Air Canada Based on 11 observations 2 stops

United Airlines Based on 15 observations 1 stop

Alaska Airlines Based on 14 observations 2 stops

United Airlines Based on 38 observations 2 stops

jetBlue Based on 13 observations 2 stops

Frontier Airlines Based on 14 observations 2 stops

€323

Flights from San Diego: quick answers

What is the cheapest flight from San Diego right now?

San Francisco at €17 one-way, the lowest fare today across the 64 routes we track from San Diego. Next: Phoenix €17, Denver €27, Las Vegas €28.

What is the cheapest month to fly from San Diego?

December. On the 26 routes from San Diego where we measured it, December fares were typically 23% below the route's median month.

How far in advance should I book flights from San Diego?

56–83 days before departure: that has been the cheapest booking window on 12 of the 46 routes from San Diego where we measured it.

Which airlines have the cheapest flights from San Diego?

Frontier Airlines has the lowest fare on 27 of the 64 routes we track from San Diego, then Alaska Airlines (15), jetBlue (5), American Airlines (3), Southwest Airlines (2).

How many routes from San Diego does Piratefly track?

64 routes, with 5,173 fares we have recorded over time.

Booking tips from our fare data

How far in advance should you book a flight?: Book 1.5–2 months before departure. Tracking the same flights at every lead time (103,225 flights on 20,679 routes, 2026-06-14 to 2026-11-07), that window had the smallest average premium over each flight's lowest fare: +16.4%, against +48.9% in the last 3 days.
What are the cheapest cities to fly to this winter?: Milan (median €29), London (median €30), Palermo (median €31). That is the median one-way fare for departures from 2026-11-01, across 336 cities ranked from fares we observed, counting only cities reachable from at least 50 airports.
Are flights getting more expensive?: Not right now. The Piratefly monthly Fare Index stands at 97.9 in 2026-11 (month in progress), against 100 in 2026-08: comparable flights are 2.1% cheaper than then, measured on the same routes month to month.