Idaho Falls skyline — flights from Dallas-Fort Worth from €94, cheapest in November

Dallas-Fort Worth to Idaho Falls: buy now or wait?

Wait FareScore 12/100

$105 ≈ €94 Today's best fare

Cheaper than 12% of what we have seen

13 Nov Frontier Airlines With a stop

Usually $105

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What the history says

Prices recorded 8

Typical price €94

Lowest we saw €94

Based on 8 prices we recorded on this exact route, compared against every month we have on record.

Best booking window

0–13 days — is when this route has been cheapest to book: €94 typical, on 8 observations.

Cheapest months to fly to Idaho Falls

November €94 8 observations

Booking tips from our fare data

How far in advance should you book a flight?: Book 1.5–2 months before departure. Tracking the same flights at every lead time (107,477 flights on 21,208 routes, 2026-06-14 to 2026-11-09), that window had the smallest average premium over each flight's lowest fare: +16.4%, against +48.7% in the last 3 days.
Are flights getting more expensive?: Not right now. The Piratefly monthly Fare Index stands at 98.4 in 2026-11 (month in progress), against 100 in 2026-08: comparable flights are 1.6% cheaper than then, measured on the same routes month to month.
What is the cheapest day of the week to fly?: Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.9% and Tuesday +4.3%, while Friday was the dearest at +10.4%. Weekend departures cost more than midweek ones.

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