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Distance from Florence, MT to IAD Airport

Distance

2,261 mi

Time

1 day 16 hours

Gas Cost

$211 - $410

Helpful Inaccurate

There are 1,912.03 miles from Florence to Washington Dulles International Airport (IAD) in southeast direction and 2,261 miles (3,638.73 kilometers) by car, following the I-90 and US-14 and US-16 Truck and SD 79 route.

Florence and IAD Airport are 1 day 16 hours far apart, if you drive non-stop .

This is the fastest route from Florence, MT to IAD Airport. The halfway point is Brewster, MN.

Please note the time difference between Florence, MT and IAD Airport is 2 hours. The current time in Florence is 9:43 am and the current time in IAD Airport is 11:43 am.

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Lowest Price Rental Cars in Florence, MT

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Florence »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 90.82 gallons of gas to cover the route between Florence, MT and IAD Airport.

The estimated cost of gas to go from Florence to IAD Airport is $296.25.

During the route, an average car will release 1,779.33 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 Florence, MT and IAD Airport

If you want to meet halfway between Florence, MT 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 43.632324 and -95.494804, or 43º 37' 56.3664" N, 95º 29' 41.2944" W. This location is 1,130.70 miles away from Florence, MT and IAD Airport and it would take approximately 20 hours 17 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Brewster, MN, situated 1,139 miles from Florence, MT and 1,202 miles from IAD Airport. It would take 16 hours 5 mins to go from Florence to Brewster and 18 hours 22 mins to go from IAD to Brewster.