Calgary to denver round trip in may direct cheap

Checked on December 2, 2025
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Executive summary

Direct round‑trip Calgary (YYC) ↔ Denver (DEN) fares in May commonly appear in the CAD ~155–330 range across major aggregators; Google Flights flags May as the cheapest month with typical May ticket ranges of $155–$410 (CAD) [1]. Several booking sites show even lower headline lows — KAYAK C$158, Cheapflights C$161 and Expedia/Orbitz/T ravel sites reporting round trips from roughly C$158–C$333 — but availability and rules vary by date and fare class [2] [3] [4] [5] [6].

1. Cheapest month and typical May pricing — why you’re seeing low fares

Market trackers and metasearch tools consistently report May as the cheapest month to fly YYC–DEN and give estimated May ranges: Google Flights lists typical May fares from $155–$410 and says May is usually the low season for this route [1]. Fare sites aggregate different snapshots — KAYAK shows fares from C$158 and Cheapflights from C$161 — which explains why a quick search yields sub‑C$200 headline prices [3] [2]. These are snapshot lowest fares, not guaranteed for all dates or baggage scenarios [3] [2].

2. Direct flight options and operators — what’s actually flying

Direct (nonstop) flights operate daily between Calgary and Denver, with carriers such as United, WestJet and Air Canada regularly offering nonstop schedules [7] [8] [9]. Flight times are short — around 2h30–2h45 — so nonstop options are common and often priced competitively [10] [7]. FlightNumbers and specific nonstop flights (e.g., UA550) appear in schedule databases and fare searches, supporting the existence of multiple departure times per day [7] [11].

3. Where the “cheap” prices come from — caveats and fine print

Aggregator low fares (C$150–$170) are often Basic Economy or deeply restricted fares: airlines and sites warn prices shown are subject to availability, collected within a recent window, and can exclude baggage or seat selection fees [3] [8] [12]. Expedia and other OTAs note their lowest round‑trip examples are based on searches for departing dates within the next year and that prices change rapidly [4] [6]. Booking early (Cheapflights suggests ~83 days before travel) can improve odds of securing the lowest rates, but those low headline prices can disappear quickly [2].

4. Where to search and compare — different sites give different snapshots

Major tools report similar ranges but different minima: KAYAK C$158, Cheapflights C$161, Air Canada advertising fares from C$155, and aggregator sites like Skyscanner and Momondo showing low results as well [3] [2] [12] [10] [13]. Expedia and Orbitz report recent round‑trip examples nearer C$266–$302 but also show one‑ways and specials that alter averages [4] [5]. Use multiple sources and the “nonstop” filter if you require direct flights; sites themselves recommend applying nonstop filters to isolate direct offerings [2] [13].

5. Timing and day‑of‑week effects — small levers that cut fares

Fare‑trend sites note day‑of‑week patterns: FareCompare reports Fridays can be cheapest for this route and Trip.com suggests Tuesdays/Wednesdays/Saturdays sometimes yield lower prices [14] [15]. Those patterns align with general airfare dynamics; shifting departure or return days by a few days in May can move you from a high to a low fare bucket [14] [15].

6. Practical booking advice — capture a cheap direct May round trip

Search multiple aggregators (Google Flights, KAYAK, Cheapflights, Skyscanner, Expedia), set price alerts, and filter for nonstop flights — then confirm the fare family (Basic vs Standard) and included baggage on the airline page before purchasing [1] [3] [2] [4]. Book earlier rather than later: Cheapflights recommends ~83 days’ lead time for best odds of lower fares [2]. Also check airlines’ own sites (United, WestJet, Air Canada) for matching or clearer fare rules once you find a low aggregator price [8] [11] [9].

Limitations and what’s not covered here

Available sources give price ranges and snapshots but do not provide guaranteed seat‑by‑seat availability for specific May dates; seat availability and exact fare rules for your chosen flights are not included in these reports (not found in current reporting). All numbers above are drawn from the aggregated snapshots and site advisories cited (p1_s1–[2]5); expect prices and baggage rules to vary when you search live.

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