Routes/Detroit, MI to San Diego, CA

Detroit, MI to San Diego, CA

Average one-way fare in 2026 Q1: $427 · 1956 nonstop miles · 499 passengers per day.

2026 Q1 fare$427

2025 Q1 fare$401

Change+$27

Passengers/day499

Distance1956 mi

The average fare a year earlier (2025 Q1) was $401. The change is $27 higher (6.6%).

The largest carrier on this route in 2026 Q1 was Delta with 84% of passengers. The lowest-fare carrier was Frontier with 5% of passengers, at an average fare of $176.

All routes from Detroit, MI · All routes from San Diego, CA

All quarters on this route

Quarter	Passengers/day	Avg. fare	Largest carrier	Largest share	Lowest-fare carrier
2024 Q1	478	$373	Delta	70%	American
2024 Q2	681	$344	Delta	75%	Spirit
2024 Q3	722	$333	Delta	74%	Spirit
2024 Q4	629	$366	Delta	79%	Frontier
2025 Q1	458	$401	Delta	79%	Frontier
2025 Q2	675	$330	Delta	74%	Spirit
2025 Q3	716	$308	Delta	72%	Spirit
2025 Q4	568	$390	Delta	85%	Frontier
2026 Q1	499	$427	Delta	84%	Frontier

Source: U.S. Department of Transportation, Consumer Airfare Report Table 1, 2026 Q1. Figures are average one-way fares paid, including taxes and fees, for the quarter shown. Record: city markets 31295 and 33570; U.S. Department of Transportation, Domestic Airline Consumer Airfare Report, Table 1: top 1,000 contiguous-state city-pair markets (average one-way fare, passengers per day, largest carrier, lowest-fare carrier). Fetched 2026-09-27T00:40:04Z. Source data.