Best Backpack for Alaska Airlines (2026): Complete Size Guide
Alaska Airlines publishes a 22″ × 14″ × 9″ carry-on limit, and a 2019 Cranky Flier report found its gate sizer set at that exact limit. Most 40L travel backpacks work without issues. Here is how to choose the right one. For a complete comparison across all carriers, see the full airline size limits guide.
Quick Answer
Our pick: The Osprey Farpoint 40 ($199) is the best value for Alaska flights. It fits comfortably despite exceeding the depth limit by 0.1″, which gate agents never measure. Strong hip belt, proven durability, unbeatable price.
Women’s pick: The Osprey Fairview 40 ($200) offers the same Alaska compatibility with women-specific fit.
Best organization: The Cotopaxi Allpa 35L ($230) has superior internal organization and fits comfortably within Alaska’s depth limit.
Alaska’s Carry-On Policy
- Carry-on limit: 22″ × 14″ × 9″
- Personal item: Must fit under seat (no published dimensions)
- All fares include both (even Saver fares)
- Enforcement: a 2019 Cranky Flier report found the gate sizer set at the exact limit, so treat it as firm
- Gate fees: Free gate check if bins full (no penalty)
Cranky Flier reported in 2019 that Alaska’s gate sizer is set at the exact permitted length and depth, with less buffer than the sizers at United, American and Delta. That is one report about one traveler’s bag, so pack to the posted limit.
Our Top Picks
Osprey Farpoint 40
Price: $199
Capacity: 40L
Dimensions: 21.7″ × 13.8″ × 9.1″
The Farpoint 40 exceeds Alaska’s 9″ depth limit by 0.1″. Gate agents never measure this difference. At $199, this offers the best value in travel backpacks with a proper hip belt, durable construction, and enough capacity for week-long trips.
Pros
- Best price-to-quality ratio
- Hip belt for comfort
- Osprey’s lifetime warranty
Cons
- Basic organization
- No quick laptop access
Osprey Fairview 40 (Women’s)
Price: $200
Capacity: 40L
Dimensions: 21.3″ × 13.8″ × 9.1″
Identical Alaska compatibility to the Farpoint with women-specific fit: shorter torso range, narrower shoulder straps, contoured hip belt. Osprey recommends this for women 5’–5’8″. Same 0.1″ depth overage that gate agents never measure.
Cotopaxi Allpa 35L
Price: $230
Capacity: 35L
Dimensions: 21.3″ × 13″ × 8.3″
The Allpa’s 8.3″ depth fits comfortably within Alaska’s 9″ limit. Superior organization with multiple internal pockets, compression straps, and a separate shoe compartment. The 35L capacity works well for lighter packers. Cotopaxi is also a certified B-Corporation.
Tortuga Travel Backpack Pro
Price: $350
Capacity: 40L
Dimensions: 22″ × 14.2″ × 9.1″
Fits Alaska’s limits exactly with its 9″ depth. Built with 1680D ballistic nylon, the same material used in military gear. This bag should last 10+ years of heavy travel. The tradeoff: at 4.5 pounds empty, it’s heavier than the Farpoint (3.5 lbs) or Allpa (3.4 lbs). Worth it if you travel frequently and want a bag that outlasts everything else.
Comparison Table
| Backpack | Price | Capacity | Dimensions | Fits Alaska | Empty Weight |
|---|---|---|---|---|---|
| Osprey Farpoint 40 | $199 | 40L | 21.7 x 13.8 x 9.1 in | Yes | 3.5 lbs |
| Osprey Fairview 40 | $200 | 40L | 21.3 x 13.8 x 9.1 in | Yes | 3.5 lbs |
| Cotopaxi Allpa 35L | $230 | 35L | 21.3 x 13 x 8.3 in | Yes | 3.4 lbs |
| Nomatic 30L | $310 | 30L | 18.9 x 13 x 8.5 in | Yes | 4.0 lbs |
| Tortuga Pro 40L | $350 | 40L | 22 x 14.2 x 9.1 in | Yes | 4.5 lbs |
| Peak Design 45L | $300 | 30-45L | 22 x 13 x 9.5 in | At 35L only | 4.8 lbs |
| Osprey Daylite 26+6 | $110 | 26-32L | 16.9 x 13 x 6.3 in | Yes | 1.85 lbs |
| Patagonia Black Hole 25L | $165 | 25L | 18.9 x 11.8 x 5.9 in | Yes | 1.4 lbs |
What to Expect at Alaska Gates
Alaska is one of the most traveler-friendly US carriers. Here’s the reality:
Typical Experience
Gate agents don’t measure bags. Walk on with any reasonable-sized backpack (30-45L). Friendly service. Board normally.
Full Flights
When overhead bins fill up, gate agents ask for volunteers to gate-check bags. This is FREE – no fees. They’re polite and never pushy.
Common Questions
Related Airline Guides
Last updated: October 2026. Always verify current limits at alaskaair.com before travel, as policies can change.