Hundreds of flights have already been cancelled on this busy travel day, with more cancellations and delays likely to come as a winter storm rolls through the East Coast. If you used the right credit card to book your trip, though, you may be entitled to some compensation.

Most cards offer some kind of travel protection, but some of the policies are pretty weak, even for high-end cards. Some only offer compensation for lost baggage, while others offer hundreds of dollars in compensation for trip delays–and thousands for trip cancellations.

The Chase Sapphire Preferred card, for example, is justifiably famous among savvy travelers for its generous delay and cancellation protection: If your trip is canceled or cut short by illness, severe weather and “other covered situations,” can can be reimbursed up to $10,000 for prepaid, nonrefundable expenses. You can get up to $500 for trip delays and a whopping $3,000 for lost luggage. (Many other cards limit lost luggage reimbursement to $500.) Other high-end Chase cards, along with The United Explorer Visa Platinum Card, offer similar top-drawer benefits.

Citi recently stepped up its game, and now offers card members refunds for trip expenses if unforeseen events like severe weather, jury duty or even previously unannounced strikes cause trip cancellations. The coverage is limited to $1,500 for most cardholders, though some get up to $5,000. Those with ThankYou Premier or Citi Prestige can get up to $500 to buy clothes and toiletries if their bags are delayed. If a trip is delayed, these travel rewards card members also can get up to $500 for unplanned expenses such as hotel rooms, ground transportation and meals.

Travel cards that you think would have pretty good protection–such as American Express or Capital One Venture–unfortunately don’t. Amex offers travel protection for an extra cost and CapOne covers just lost or stolen luggage (although the limit is $3,000).

If you’re affected this weekend by travel hassles, call and ask the credit card company that you used to book the trip what your options might be. If you don’t like what you hear, start looking for a better alternative for your next trip.