Flights Denver → Detroit
As of September 2026, economy flights from Denver to Detroit have a typical range USD 590–884, median USD 834. Full range across all 73 offers: USD 339–884. We found 56% of 73 offers from budget carriers (around USD 789) and 44% from full-service carriers (around USD 834).
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 →
Best offers by airline: Denver → Detroit
Based on 73 offers · September 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Denver → Detroit
Add-on pricing from the cheapest available offer per airline · September 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier Airlines | — | — | — |
| Delta | USD 82 | USD 128 | — |
| United Airlines | USD 82 | USD 123 | — |
| Southwest Airlines | Included | Included | — |
| Southwest | — | USD 90 | — |
| Delta | — | USD 90 | — |
| JetBlue | Included | — | — |
| United | — | USD 100 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Denver to Detroit cost?
Based on 73 offers · September 2026
Denver to Detroit flights ranged from USD 339 to USD 884 across 73 offers analyzed in September 2026. Two fare clusters detected: budget fares around 584 and premium fares around 857 The chart below shows how prices distributed across all 73 offers.
These 73 offers (September 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 789 and USD 844
What hidden fees do Denver to Detroit flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Denver to Detroit routes. The breakdown below is based on 73 offers analyzed in September 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 27 | 5% |
| DL | 73 | 10% |
| UA | 65 | 8% |
| WN | 0 | 0% |
| Southwest | 90 | 11% |
| Delta | 90 | 11% |
| B6 | 10 | 1% |
| United | 100 | 12% |
United: base ~USD 744 + fees USD 100 = ~USD 844 total. B6: base ~USD 874 + fees USD 10 = ~USD 884 total.
United's USD 100 ancillary fees narrow the gap with B6's lower-fee model — the USD 130 base difference shrinks to USD 40 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 Denver to Detroit?
9 airlines flew Denver to Detroit in this dataset. The route shows a clear split between low-cost and full-service carriers. 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) |
|---|---|---|---|---|
 Frontier | 1 | — | 386 | n/a |
 Frontier Airlines | 7 | 361–595 | 573 | 27 (5%) |
 Southwest Airlines | 4 | — | 789 | 0 (0%) |
 Delta Air Lines | 15 | 590–834 | 789 | 73 (9%) |
 United Airlines | 10 | 590–844 | 789 | 65 (8%) |
 Southwest | 4 | — | 789 | 90 (11%) |
 Delta | 12 | — | 834 | 90 (11%) |
 United | 4 | — | 844 | 100 (12%) |
 B6 | 16 | 839–884 | 884 | 10 (1%) |
Where do the best Denver → Detroit 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: Denver to Detroit flights
- Full-service carriers on Denver–Detroit cost 1.2x more than budget airlines (USD 814 vs USD 684 median; overall median USD 834).
- United charges 10.0x more in ancillary fees than B6 — USD 100 vs USD 10 avg per booking.
- The same route priced USD 545 apart depending on where it was booked — the lowest median was USD 339. 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 Denver to Detroit cost?
- Based on 73 offers analyzed, Denver to Detroit flights range from USD 339 to USD 884, with a median price of USD 834. Search for your specific dates →
- What hidden fees should I expect on Denver to Detroit flights?
- On average, ancillary fees (bags, seat selection) add USD 55 to the base fare on Denver to Detroit flights. See itemized fees for your itinerary →
- Which airline is cheapest on Denver to Detroit including all fees?
- Frontier has the lowest median fare on Denver to Detroit at USD 386 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Denver–Detroit 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 339. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Denver to Detroit routes?
- Denver to Detroit has 9 airlines competing, creating a price range from USD 339 to USD 884 across 73 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
9 airlines, two price clusters — find which fits your budget
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers