Flights Detroit → Dulles
As of May 2026, economy flights from Detroit to Dulles have a typical range USD 329–560, median USD 463. Full range across all 347 offers: USD 259–835. We analyzed 347 offers from 15 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
How much do flights from Detroit to Dulles cost?
Based on 347 offers · May 2026
Detroit to Dulles flights ranged from USD 259 to USD 835 across 347 offers analyzed in May 2026. The chart below shows how prices distributed across all 347 offers.
These 347 offers (May 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 386 and USD 510
What hidden fees do Detroit to Dulles flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Detroit to Dulles routes. The breakdown below is based on 347 offers analyzed in May 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| UA | 50 | 13% |
| DL | 45 | 10% |
| AA | 45 | 11% |
| F9 | 385 | 82% |
| WS | 325 | 58% |
Frontier Airlines: base ~USD 67 + fees USD 385 = ~USD 452 total. American Airlines: base ~USD 369 + fees USD 45 = ~USD 414 total.
Frontier Airlines's USD 385 ancillary fees narrow the gap with American Airlines's lower-fee model — the USD 302 base difference shrinks to USD 38 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Detroit to Dulles?
15 airlines flew Detroit to Dulles in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 United Airlines | 119 | — | 376 | 50 (13%) |
 Delta Air Lines | 15 | — | 399 | 45 (11%) |
 American Airlines | 12 | — | 414 | 45 (11%) |
 Delta Airlines|Frontier | 4 | — | 424 | n/a |
 Frontier|JetBlue | 2 | — | 432 | n/a |
 United Airlines|Frontier | 10 | — | 437 | n/a |
 Frontier|United Airlines | 12 | — | 442 | n/a |
 Frontier Airlines | 62 | — | 452 | 385 (85%) |
 Frontier|Delta Airlines | 6 | — | 462 | n/a |
 American Airlines|Frontier | 3 | — | 463 | n/a |
 Frontier|American Airlines | 1 | — | 482 | n/a |
 Delta Airlines | 20 | — | 510 | n/a |
 United Airlines | 60 | — | 515 | n/a |
 American Airlines | 20 | — | 560 | n/a |
 WestJet | 1 | — | 561 | 325 (58%) |
Where do the best Detroit → Dulles prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Detroit to Dulles flights
- Full-service carriers on Detroit–Dulles cost 1.0x more than budget airlines (USD 462 vs USD 462 median; overall median USD 463).
- F9 charges 8.6x more in ancillary fees than AA — USD 385 vs USD 45 avg per booking.
- The same route priced USD 149 apart depending on where it was booked — the lowest median was USD 376. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Detroit to Dulles cost?
- Based on 347 offers analyzed, Detroit to Dulles flights range from USD 259 to USD 835, with a median price of USD 463. Search for your specific dates →
- What hidden fees should I expect on Detroit to Dulles flights?
- On average, ancillary fees (bags, seat selection) add USD 140 to the base fare on Detroit to Dulles flights. See itemized fees for your itinerary →
- Which airline is cheapest on Detroit to Dulles including all fees?
- United Airlines has the lowest median fare on Detroit to Dulles at USD 376 (median across 119 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Detroit–Dulles flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 376. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Detroit to Dulles routes?
- Detroit to Dulles has 15 airlines competing, creating a price range from USD 259 to USD 835 across 347 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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