Cheap flights from San Diego

We are watching 68 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 Las Vegas €25

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Where to fly from San Diego

Wed

13 Jan

San Diego → San Francisco

Frontier Airlines Based on 921 observations ✈ Direct

Frontier Airlines Based on 229 observations ✈ Direct

€17

Fri

1 Jan

San Diego → Las Vegas

Frontier Airlines Based on 401 observations ✈ Direct

Frontier Airlines Based on 140 observations ✈ Direct

€27

Mon

16 Nov

San Diego → Dallas-Fort Worth

Frontier Airlines Based on 170 observations ✈ Direct

Frontier Airlines Based on 83 observations 1 stop

Alaska Airlines Based on 150 observations ✈ Direct

Alaska Airlines Based on 95 observations ✈ Direct

Frontier Airlines Based on 337 observations 1 stop

€58

Fri

29 Jan

San Diego → Salt Lake City

Frontier Airlines Based on 8 observations 1 stop

Alaska Airlines Based on 67 observations ✈ Direct

jetBlue Based on 81 observations ✈ Direct

€83

Mon

7 Dec

San Diego → Cincinnati / Covington

Frontier Airlines Based on 13 observations 1 stop

Frontier Airlines Based on 69 observations 1 stop

Frontier Airlines Based on 46 observations 3 stops

Frontier Airlines Based on 100 observations 2 stops

€91

Mon

7 Dec

San Diego → Baltimore

Frontier Airlines Based on 70 observations 2 stops

American Airlines Based on 131 observations ✈ Direct

€95

Tue

15 Dec

San Diego → Fort Lauderdale

Alaska Airlines Based on 44 observations ✈ Direct

€95

Mon

7 Dec

San Diego → Washington

Frontier Airlines Based on 67 observations 1 stop

jetBlue Based on 358 observations 1 stop

€106

Sat

14 Nov

San Diego → Charlotte

American Airlines Based on 119 observations ✈ Direct

€112

Mon

4 Jan

San Diego → Oklahoma City

Frontier Airlines Based on 28 observations 1 stop

WestJet Based on 50 observations 1 stop

€114

Wed

30 Dec

San Diego → Indianapolis

Southwest Airlines Based on 30 observations 1 stop

Frontier Airlines Based on 18 observations 1 stop

€122

Sun

6 Dec

San Diego → Vancouver

Frontier Airlines Based on 73 observations 2 stops

€124

Fri

13 Nov

San Diego → Santa Barbara

Alaska Airlines Based on 26 observations ✈ Direct

Frontier Airlines Based on 16 observations 3 stops

€129

Tue

10 Nov

San Diego → Santa Rosa

Alaska Airlines Based on 14 observations ✈ Direct

Frontier Airlines Based on 37 observations 1 stop

€135

Fri

13 Nov

San Diego → Bellingham

Frontier Airlines Based on 9 observations 1 stop

Frontier Airlines Based on 25 observations 2 stops

€140

Wed

25 Nov

San Diego → Nashville

Southwest Airlines Based on 14 observations ✈ Direct

Frontier Airlines Based on 58 observations 1 stop

€142

Thu

21 Jan

San Diego → Melbourne

Frontier Airlines Based on 11 observations 2 stops

Breeze Airways Based on 74 observations 1 stop

€152

Sat

5 Dec

San Diego → Mexico City

Frontier Airlines Based on 112 observations 1 stop

Alaska Airlines Based on 126 observations ✈ Direct

€154

Wed

11 Nov

San Diego → Los Angeles

United Airlines Based on 129 observations 1 stop

€155

Mon

23 Nov

San Diego → Guadalajara

Frontier Airlines Based on 8 observations 1 stop

Alaska Airlines Based on 11 observations ✈ Direct

Frontier Airlines Based on 46 observations 3 stops

Frontier Airlines Based on 8 observations 1 stop

Frontier Airlines Based on 29 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 28 observations ✈ Direct

€228

Sat

14 Nov

San Diego → Puerto Vallarta

Alaska Airlines Based on 36 observations ✈ Direct

jetBlue Based on 8 observations 1 stop

€233

Thu

19 Nov

San Diego → Palm Springs

Alaska Airlines Based on 35 observations 1 stop

Breeze Airways Based on 12 observations 2 stops

€247

Mon

18 Jan

San Diego → Copenhagen

Frontier Airlines Based on 13 observations 3 stops

jetBlue Based on 34 observations 1 stop

Frontier Airlines Based on 27 observations 1 stop

Air Canada Based on 10 observations 2 stops

€274

Sat

7 Nov

San Diego → Kalispell

Frontier Airlines Based on 13 observations 2 stops

United Airlines Based on 14 observations 1 stop

Alaska Airlines Based on 12 observations 2 stops

United Airlines Based on 37 observations 2 stops

€302

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 68 routes we track from San Diego. Next: Phoenix €17, Las Vegas €25, Denver €27.

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 13 of the 47 routes from San Diego where we measured it.

Which airlines have the cheapest flights from San Diego?

Frontier Airlines has the lowest fare on 34 of the 68 routes we track from San Diego, then Alaska Airlines (14), jetBlue (6), American Airlines (3), United Airlines (3).

How many routes from San Diego does Piratefly track?

68 routes, with 5,098 fares we have recorded over time.

Booking tips from our fare data

How far in advance should you book a flight?: Book 1–1.5 months before departure. Tracking the same flights at every lead time (97,668 flights on 19,841 routes, 2026-06-14 to 2026-11-05), that window had the smallest average premium over each flight's lowest fare: +16.7%, against +49.3% in the last 3 days.
What is the cheapest day of the week to fly?: Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.5% and Tuesday +4.3%, while Friday was the dearest at +10.5%. Weekend departures cost more than midweek ones.
What is the cheapest month to fly?: November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +22.7%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-05.