What is the cheapest month to fly from Dulles to Bismarck?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Dulles (IAD) to Bismarck (BIS), with fares starting from $373.

What is the lowest current fare from IAD to BIS?

The lowest currently-listed fare from Dulles (IAD) to Bismarck (BIS) is $373 on 2026-08-01.

Is there a direct flight from Dulles to Bismarck?

There is currently no non-stop service from IAD to BIS. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Dulles to Bismarck

Cheapest current fares: $373 in August 2026 on connecting flights.

Last updated May 26, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Dulles (IAD) to Bismarck (BIS). Refreshed daily.

Dulles (IAD) → Bismarck (BIS)

August 2026 $373

Frequently asked questions

What is the cheapest month to fly from Dulles to Bismarck?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Dulles (IAD) to Bismarck (BIS), with fares starting from $373.
What is the lowest current fare from IAD to BIS?

The lowest currently-listed fare from Dulles (IAD) to Bismarck (BIS) is $373 on 2026-08-01.
Is there a direct flight from Dulles to Bismarck?

There is currently no non-stop service from IAD to BIS. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.