Flights Boise → Detroit
As of September 2026, economy flights from Boise to Detroit have a typical range USD 589–681, median USD 600. Full range across all 160 offers: USD 570–682. We found 48% of 160 offers from budget carriers (around USD 595) and 52% from full-service carriers (around USD 609).
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: Boise → Detroit
Based on 160 offers · September 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Boise → Detroit
Add-on pricing from the cheapest available offer per airline · September 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Alaska Airlines | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| American Airlines | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| JetBlue | Included | — | — |
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 Boise to Detroit cost?
Based on 160 offers · September 2026
Boise to Detroit flights ranged from USD 570 to USD 682 across 160 offers analyzed in September 2026. Two fare clusters detected: budget fares around 598 and premium fares around 643 The chart below shows how prices distributed across all 160 offers.
These 160 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 595 and USD 645
What hidden fees do Boise to Detroit flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Boise to Detroit routes. The breakdown below is based on 160 offers analyzed in September 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| AS | 35 | 6% |
| WN | 8 | 1% |
| AA | 60 | 10% |
| DL | 45 | 7% |
| B6 | 12 | 2% |
American Airlines: base ~USD 549 + fees USD 60 = ~USD 609 total. B6: base ~USD 670 + fees USD 12 = ~USD 682 total.
American Airlines's USD 60 ancillary fees narrow the gap with B6's lower-fee model — the USD 121 base difference shrinks to USD 73 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 Boise to Detroit?
5 airlines flew Boise 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.
Even on the cheapest airline (Alaska Airlines), fares ranged USD 570–625 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Alaska Airlines | 7 | 570–625 | 570 | 35 (6%) |
 Southwest Airlines | 69 | 595–640 | 595 | 8 (1%) |
 American Airlines | 44 | 589–665 | 609 | 60 (10%) |
 Delta Air Lines | 21 | 601–681 | 681 | 45 (7%) |
 B6 | 19 | 640–682 | 682 | 12 (2%) |
Where do the best Boise → 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: Boise to Detroit flights
- Full-service carriers on Boise–Detroit cost 1.0x more than budget airlines (USD 620 vs USD 639 median; overall median USD 600).
- AA charges 7.7x more in ancillary fees than WN — USD 60 vs USD 8 avg per booking.
- The same route priced USD 73 apart depending on where it was booked — the lowest median was USD 589. 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 Boise to Detroit cost?
- Based on 160 offers analyzed, Boise to Detroit flights range from USD 570 to USD 682, with a median price of USD 600. Search for your specific dates →
- What hidden fees should I expect on Boise to Detroit flights?
- On average, ancillary fees (bags, seat selection) add USD 29 to the base fare on Boise to Detroit flights. See itemized fees for your itinerary →
- Which airline is cheapest on Boise to Detroit including all fees?
- Alaska Airlines has the lowest median fare on Boise to Detroit at USD 570 (median across 7 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Boise–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 589. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Boise to Detroit routes?
- Boise to Detroit has 5 airlines competing, creating a price range from USD 570 to USD 682 across 160 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
5 airlines, two price clusters — find which fits your budget
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