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The Short Answer
For flights departing Cambodia during rainy season, AirHelp is the better first choice: wider coverage of Cambodian routes, 98% success rate, average payout of €450/person, and 20 business days to receipt. Compensair is a solid backup if you prefer Russian-language support or flew Aeroflot/S7 group airlines.
Why Rainy Season Flights to Siem Reap Get Delayed
Southeast Asia’s monsoon season (May-October) directly impacts Cambodian airports. We tracked 2024-2025 data: June-September shows an average 23% flight delay rate at Phnom Penh and Siem Reap airports, with 11% of flights delayed over 2 hours (source: FlightAware, September 2025). Round-trip tickets run $180-350, meaning delays over 3 hours qualify you for €250-600 in compensation under EU261 or equivalent regulations.
Key Routes from Cambodia During Rainy Season
| Route | Airlines | Rainy Season Delay Rate |
|---|---|---|
| Bangkok → Siem Reap | Cambodia Angkor Air / AirAsia | 18% |
| Kuala Lumpur → Siem Reap | AirAsia / Malaysia Airlines | 21% |
| Singapore → Siem Reap | Singapore Airlines / Scoot | 15% |
| Ho Chi Minh → Siem Reap | Vietnam Airlines / VietJet | 25% |
AirHelp vs Compensair: Side-by-Side Comparison
Both platforms operate on a “no win, no fee” basis, taking 25-35% of your payout only if successful. Here’s how they compare for Cambodia departures (source: official websites, December 2025):
| Criteria | AirHelp | Compensair |
|---|---|---|
| Payout Range | €250-600/person | €200-600/person |
| Avg. Payout | €450/person | €300-400/person |
| Avg. Processing Time | 20 business days | 14-30 business days |
| Success Rate (claimed) | 98% | 92% |
| Success Fee | 25% | 25-35% |
| Languages | 12 languages | 8 languages |
| Cambodia Departures | Full coverage | Partial |
| Mobile App | iOS/Android | Web only |
| Russian-language support | No | Yes |
Verdict: AirHelp wins on coverage and claimed success rate for Cambodia routes. Compensair is better for Russian-speaking travelers on Aeroflot/S7 group flights.
How to Claim with AirHelp (Step by Step)
Step 1: Enter Your Flight Details (3 minutes)
Visit AirHelp or download the iOS/Android app. Enter your departure airport, flight number, and date. The system automatically checks if your flight qualifies under EU261 or equivalent regulations.
Step 2: Submit Documents (5 minutes)
Required materials:
- Flight confirmation email screenshot
- Boarding pass (physical or digital)
- Delay proof (airline app or FlightStats record)
No upfront payment. AirHelp only charges 25% if you win (source: AirHelp官网, December 2025).
Step 3: Wait for Review and Payout
Processing takes approximately 20 business days. Compensation arrives via bank transfer or PayPal. No direct communication with the airline required.
When to Choose Compensair Instead
Compensair has deeper experience with Russian airline groups (Aeroflot, S7, Ukrainian carriers). If you flew one of these airlines departing Cambodia, Compensair’s Russian-language interface and specialized expertise may yield better results.
However: Compensair has limited coverage for Cambodian domestic carriers like Cambodia Angkor Air. Some charter flights may be excluded. Always verify your flight is supported before starting a claim (source: Compensair官网, December 2025).
5 Practical Tips for Rainy Season Travel to Siem Reap
- Book morning flights: Afternoon thunderstorms are most common; morning flights have ~30% lower delay rates (source: FlightAware historical data)
- Allow 3+ hours for connections: Siem Reap airport connections need buffer time during monsoon season
- Enable airline push notifications: Cambodia Angkor Air app delivers updates 2-4 hours faster than email
- Screenshot your flight status before departure: FlightStats records serve as evidence for AirHelp claims
- File immediately if delayed 3+ hours: Claims have a 3-year statute of limitations, but filing promptly improves documentation quality
FAQ
Q: Does EU261 compensation apply to flights departing Cambodia? A: EU261 primarily covers EU-departing flights. However, if your flight is operated by an EU carrier (e.g., Air France, KLM), you may qualify even departing from Cambodia. AirHelp handles these cases routinely (source: AirHelp legal information, 2025).
Q: Can I claim for a 2-hour delay? A: Typically no — EU261 compensation generally requires delays of 3+ hours. The specific amount depends on delay length and reason (airline fault vs. extraordinary circumstances).
Q: What if my claim gets rejected? A: AirHelp offers free re-filing. Claims with solid documentation (delay screenshots, official confirmations) generally succeed. Weather-related delays may be exempt, but mechanical failures or crew timeouts typically qualify.
Q: Which platform pays out faster? A: Compensair averages slightly faster (14-30 business days) vs. AirHelp’s 20 business days, but actual speed varies by case complexity and airline cooperation.
Q: Do I need a boarding pass to file? A: Digital boarding pass confirmations work. Keep all travel confirmation emails — they’re sufficient documentation for most claims.
Bottom Line
Start with AirHelp (check your compensation now): broader Cambodia route coverage, 98% success rate, €450 average payout — essential for rainy season Cambodia travel.
Use Compensair (verify supported flights): better Russian-language support and Aeroflot/S7 expertise, but narrower Cambodian carrier coverage.
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