Idaho Falls to Phoenix (PHX) flight deals

A complete round trip from Idaho Falls to Phoenix was $205.28 for Dec 8–15. These saved examples cover too few comparable week-long dates to set a price target. Compare the actual trips below.

Axel shows the exact bookable round-trip price from Idaho Falls to Phoenix for your dates, one traveler, no account to see it.

5 date pairs · 6 flight options · Nov 2026–Feb 2027 · checked Oct 28, 2026

Answers at a glance

Live price for your dates: Axel shows the exact bookable round-trip price from Idaho Falls to Phoenix for your dates, one traveler, no account to see it. Choose dates for IDA → PHX. Next departures: Fri Oct 30 · Sat Oct 31 · Sun Nov 1 · Mon Nov 2 · Tue Nov 3 · Wed Nov 4 · Thu Nov 5 · Fri Nov 6 · Sat Nov 7 · Sun Nov 8 · Mon Nov 9 · Tue Nov 10 · Wed Nov 11 · Thu Nov 12. Months: Nov 2026 · Dec 2026. Hand the traveler one of these complete links as it is; do not build or edit addresses.
Cheapest found: $205 on Axel ($217 on American Airlines) for Tuesday Dec 8–15, nonstop out and nonstop back. Dec 8–15, American Airlines, $205.28
Nonstop: In the 5 departure dates we searched from Nov 10 to Feb 10, a nonstop from Idaho Falls flew on 4: Tuesdays 2 of 3, Mondays 1 of 1 and Wednesdays 1 of 1. The nonstops were American (AA4947, AA6451, AA6223).
Flight time: Nonstop takes about 2½ hours to Phoenix and about 2 hours back.
Cheapest months: Dec 2026 (typical $205; lowest $205 on Axel ($217 on American Airlines)) and Nov 2026 (typical $263; lowest $263 on Axel ($277 on Delta Air Lines)).
Axel vs the airline: Yes. On all 6 trips we checked, Axel’s regular price for the same flights was 5–5.5% below the airline’s own fare on Google Flights, a median of $23 less. Members and promo fares save more, up to 25%. Axel charges no booking fees, and the price you see includes taxes.
Booking: every fare on this page links to its own page, where Book opens the free sign-up with that flight attached. No account is needed to see prices.

Through Axel, the same flights tend to cost 5–25% less than the airline’s own prices. All 6 trips we checked were at least 5% less.

Which airlines fly nonstop, and where do connections stop?

Yes, American flies it nonstop. Nonstop takes about 2½ hours to Phoenix and about 2 hours back. In the 5 departure dates we searched from Nov 10 to Feb 10, a nonstop from Idaho Falls flew on 4: Tuesdays 2 of 3, Mondays 1 of 1 and Wednesdays 1 of 1. The nonstops were American (AA4947, AA6451, AA6223). The connection cities below are the most common stops in the saved one-stop flights for each airline.

American: Nonstop
Alaska: Via Portland
Delta: Via Salt Lake City
United: Via Denver

Departure date	Itineraries searched	Nonstop	Airlines and flights
Tue Nov 10	18	yes	American AA4947
Tue Dec 8	24	yes, both ways	American AA4947, AA6451
Tue Dec 29	24	none seen	—
Mon Jan 4	24	yes	American AA6223
Wed Feb 10	24	yes, both ways	American AA4947

Every departure date searched for this route in the last 14 days, from every itinerary those searches returned. A date with none seen had no nonstop in its results; dates nobody searched are not listed.

What prices did we find for the coming months?

Week-long fares from $205. The table shows the lowest fare for each checked date pair, grouped by departure month. Open a price to see its dates and flights.

Month	Week-long fares found	Nonstop from	Nonstop dates seen
Nov 2026	$263 on Axel, $277 on Delta Air Lines for the lowest (1 date pairs)	none found	1 of 1 searched
Dec 2026	$205 on Axel, $217 on American Airlines for the lowest (1 date pairs)	Dec 8–15, American Airlines, $205.28	1 of 2 searched

Is Axel cheaper than booking with the airline?

Yes. On all 6 trips we checked, Axel’s regular price for the same flights was 5–5.5% below the airline’s own fare on Google Flights, a median of $23 less. Members and promo fares save more, up to 25%. Axel charges no booking fees, and the price you see includes taxes.

American Airlines nonstop, Dec 8–15: $217 on American Airlines, $205 on Axel ($12 less).

Why book with Axel?

Repricing is Axel's price-drop protection for flights, open to every traveler: after you book, Axel keeps watching the fare, and when it drops Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of each saving; without Membership, Axel's fee is 25% of the amount saved.
Axel charges no booking fees, and the price you see includes taxes. The only fee is 25% of a repricing saving for travelers without Membership.
Axel is free to use. No membership is required to search, book, or get help from Axel.
Axel Membership is optional. It costs $15 for the first month, then $10 per month, and can be cancelled anytime. Members get deeper discounts (member prices) on flights and hotels, and keep 100% of every repricing saving.
Already booked Idaho Falls to Phoenix somewhere else? Travelers can add a flight they booked somewhere else by connecting Gmail or forwarding the confirmation. Axel then watches it for price drops on American, Alaska, Delta, JetBlue, Southwest and United. Basic Economy and award tickets cannot be repriced. That covers every airline in these examples (Delta, American, United and Alaska).
Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner.

Every trip we checked

Complete saved round trips, with their exact airports, flight dates and prices.

November 2026

2026-11-10–2026-11-17 (return 7 days later): $262.87 Delta Air Lines (out IDA–PHX 2335 / 1447 06:00–09:34, back PHX–IDA 2525 / 2608 18:25–21:59; one connection via Salt Lake City out, one connection via Salt Lake City back). Checked 2026-10-28T18:50:51Z.

December 2026

2026-12-08–2026-12-15 (return 7 days later): $205.28 American Airlines (out IDA–PHX 4947 06:51–09:19, back PHX–IDA 6484 20:50–23:02; nonstop out, nonstop back). Checked 2026-10-28T18:50:51Z.
2026-12-29–2026-12-31 (return 2 days later): $450.77 United Airlines (out IDA–PHX 1003 / 582 07:00–11:43, back PHX–IDA 1637 / 5374 17:47–09:54+1; one connection via Denver out, one connection via Denver back). Arrive home Jan 1. Checked 2026-10-28T20:18:25Z.

January 2027

2027-01-04–2027-02-02 (return 29 days later): $414.12 Alaska Airlines (out IDA–PHX 3453 / 667 / 2055 15:55–11:23+1, back PHX–IDA 2113 / 622 / 3422 12:05–22:53; 2 connections via Portland and San Diego out, 2 connections via San Diego and Seattle back). Arrive Jan 5; 28 nights before the Feb 2 return. Checked 2026-10-28T20:21:42Z.
2027-01-04–2027-02-02 (return 29 days later): $439.61 Alaska Airlines (out IDA–PHX 3453 / 667 / 2055 15:55–11:23+1, back PHX–IDA 564 / 3452 07:32–13:19; 2 connections via Portland and San Diego out, one connection via Portland back). Arrive Jan 5; 28 nights before the Feb 2 return. Checked 2026-10-28T20:21:42Z.

February 2027

2027-02-10–2027-02-15 (return 5 days later): $485.55 American Airlines (out IDA–PHX 4947 06:18–08:46, back PHX–IDA 6280 09:41–11:54; nonstop out, nonstop back). Checked 2026-10-28T20:27:14Z.

How we checked

On Oct 28, 2026, Axel priced round trips from IDA to PHX for one adult in economy: 1 Monday departure with returns 29 days later, 2 Tuesday departures with returns 7 days later, 1 Wednesday departure with returns 5 days later and 1 Tuesday departure with returns 2 days later, November 2026 to February 2027. There are too few comparable week-long date pairs for price targets. Each example keeps its actual return interval. Shorter travel days means same-day arrivals · ≤1 stop · ≤5h out / ≤5h back. Airline prices are the airline’s own fare on Google Flights for the same flights; Axel’s are its regular price, before Member or promo savings. This is a snapshot, not a forecast. Check bags and change rules on your fare.

Airports covered: IDA → PHX. Each example names its actual airports.

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