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Distance from SAN Airport to IAD Airport

Distance

2,675 mi

Time

1 day 22 hours

Gas Cost

$249 - $485

Helpful Inaccurate

There are 2,248.43 miles from San Diego International Airport (SAN) to Washington Dulles International Airport (IAD) in east direction and 2,675 miles (4,305.00 kilometers) by car, following the I-20 route.

SAN Airport and IAD Airport are 1 day 22 hours far apart, if you drive non-stop .

This is the fastest route from SAN Airport to IAD Airport. The halfway point is Wheatland, OK.

Please note the time difference between SAN Airport and IAD Airport is 3 hours. The current time in SAN Airport is 6:09 am and the current time in IAD Airport is 9:09 am.

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Lowest Price Rental Cars in SAN Airport

Planning on renting a car to go from SAN Airport to IAD Airport? Here there are some offers to rent a car in SAN Airport

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in San Diego International Airport »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 107.43 gallons of gas to cover the route between SAN Airport and IAD Airport.

The estimated cost of gas to go from SAN Airport to IAD Airport is $350.45.

During the route, an average car will release 2,104.82 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between SAN Airport and IAD Airport

If you want to meet halfway between SAN Airport and IAD Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 35.434231 and -97.636452, or 35º 26' 3.2316" N, 97º 38' 11.2272" W. This location is 1,337.54 miles away from SAN Airport and IAD Airport and it would take approximately 23 hours 27 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Wheatland, OK, situated 1,351 miles from SAN Airport and 1,337 miles from IAD Airport. It would take 19 hours 13 mins to go from SAN to Wheatland and 20 hours 14 mins to go from IAD to Wheatland.

Major City Closest to Halfway Point

The major city closest to the halfway point between SAN Airport and IAD Airport is Oklahoma City, OK, situated 1,355 miles from SAN Airport and 1,330 miles from IAD Airport. It would take 19 hours 16 mins to go from SAN to and 20 hours 4 mins to go from IAD to Oklahoma City.