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Flights Butte → Chicago

As of October 2026, economy flights from Butte to Chicago have a typical range USD 607–2162, median USD 785. Full range across all 198 offers: USD 384–4494. We found 8% of 198 offers from budget carriers (around USD 528) and 92% from full-service carriers (around USD 798).

198 offersavg USD 63 in feesFresh · October 2026
Search Butte → Chicago — see your price →

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 →

Two fare clusters detected: budget fares around 590 and premium fares around 2234

Best offers by airline: Butte → Chicago

Based on 198 offers · October 2026. Prices and availability change — run a live search to confirm.

UnitedUSD 384
8h 20m–13h 28mMin 1 stopMorning (06–12)
Search United
UnitedUSD 456
6h 35m–28h 49mMin 1 stopMorning (06–12)
Bags included
Non-refundable
Search United
DeltaUSD 1032
13h 30m–15hMin 2 stopsEvening (18–21)
Bags included
Non-refundable
Search Delta

Bag & seat fees: Butte → Chicago

Add-on pricing from the cheapest available offer per airline · October 2026 · USD

AirlineCarry-onChecked bagSeat selection
UnitedIncludedUSD 35—
DeltaIncludedUSD 90—

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 Butte to Chicago cost?

Based on 198 offers · October 2026

Butte to Chicago flights ranged from USD 384 to USD 4494 across 198 offers analyzed in October 2026. Two fare clusters detected: budget fares around 590 and premium fares around 2234 The chart below shows how prices distributed across all 198 offers.

P10: USD 607P25: USD 715P50: USD 785P75: USD 997P90: USD 2162

These 198 offers (October 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 715 and USD 997

What hidden fees do Butte to Chicago flights charge?

Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Butte to Chicago routes. The breakdown below is based on 198 offers analyzed in October 2026.

Ancillary fee breakdown by carrier
CarrierAvg fee (USD)% of base fare
UA646%
DL553%

United Airlines: base ~USD 734 + fees USD 64 = ~USD 798 total. Delta Air Lines: base ~USD 1555 + fees USD 55 = ~USD 1610 total.

United Airlines's USD 64 ancillary fees narrow the gap with Delta Air Lines's lower-fee model — the USD 821 base difference shrinks to USD 812 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.

UA charges 1.2x more in ancillary fees than DL on this route. Compare total-cost options when booking.

Run your search to see itemized fees for your itinerary

Which airline is cheapest from Butte to Chicago?

3 airlines flew Butte to Chicago 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 (United), fares ranged USD 446–717 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →

AirlineOffersTypical range (USD)Median (USD)Fees (USD)
United16446–717528n/a
United Airlines174636–210979864 (8%)
Delta Air Lines81032–3172161055 (3%)

Where do the best Butte → Chicago prices come from?

We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency 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: Butte to Chicago flights

Frequently asked questions

How much does a flight from Butte to Chicago cost?
Based on 198 offers analyzed, Butte to Chicago flights range from USD 384 to USD 4494, with a median price of USD 785. Search for your specific dates →
What hidden fees should I expect on Butte to Chicago flights?
On average, ancillary fees (bags, seat selection) add USD 63 to the base fare on Butte to Chicago flights. See itemized fees for your itinerary →
Which airline is cheapest on Butte to Chicago including all fees?
United has the lowest median fare on Butte to Chicago at USD 528 (median across 16 offers in our snapshot). Check which airline wins on your dates →
Which booking site has the cheapest Butte–Chicago 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 528. Run a live search and we'll find the cheapest for you →
Why do prices vary so much on Butte to Chicago routes?
Butte to Chicago has 3 airlines competing, creating a price range from USD 384 to USD 4494 across 198 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →

3 airlines, two price clusters — find which fits your budget

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Flights Butte → Chicago: Price Data & Hidden Fees | LetsFG