Sergey Firsov v. United Airlines, Inc., et al.

District Court, N.D. California·Decided February 9, 2026·No. 5:25-cv-03784·Unknown

Opinion

SERGEY FIRSOV, Case No. 5:25-cv-03784-BLF

Plaintiff, ORDER GRANTING DEFENDANTS’ MOTIONS TO DISMISS AND v. DEFERRING PLAINTIFF’S MOTION FOR LEAVE TO AMEND; ORDER TO UNITED AIRLINES, INC, et al., SHOW CAUSE WHY CASE SHOULD NOT BE DISMISSED Defendants. [Re: ECF Nos. 27, 29, 53]

Before the Court are three motions regarding pro se Plaintiff Sergey Firsov’s five-count complaint. Defendant United Airlines, Inc. (“United”) moves to dismiss pursuant to Federal Rule of Civil Procedure 12(b)(6). ECF No. 27 (“United Mot.”); ECF No. 50 (“United Reply”). Defendant Deutsche Lufthansa Aktiengesellschaft (“Lufthansa”) moves to dismiss pursuant to Federal Rules of Civil Procedure 12(b)(1), 12(b)(2), 12(b)(4), and 12(b)(6). ECF No. 29 (“Lufthansa Mot.”); ECF No. 59 (“Lufthansa Reply”). Mr. Firsov moves for leave to file an amended complaint. ECF No. 53 (“Firsov Mot.”). Mr. Firsov opposes Defendants’ motions to dismiss. ECF No. 39 (“Opp. to United”); ECF No. 51 (“Opp. to Lufthansa”). Defendants oppose Mr. Firsov’s motion for leave to amend. ECF No. 77 (“United Opp.”); ECF No. 78 (“Lufthansa Opp.”). The Court rules as follows. United’s motion is GRANTED. Lufthansa’s motion is GRANTED. Each of Mr. Firsov’s claims against Defendants is DISMISSED WITH PREJUDICE. The Court DEFERS ruling on Mr. Firsov’s motion for leave to amend; Mr. Firsov is ORDERED TO SHOW CAUSE why this action should not be dismissed for lack of subject- matter jurisdiction. I. BACKGROUND This case involves Mr. Firsov’s travails in attempting to purchase a round-trip international plane ticket from San Francisco to Warsaw, Poland. On February 7, 2025, United advertised a $789 fare for a round-trip ticket between San Francisco and Warsaw. Mr. Firsov tried unsuccessfully to purchase the ticket online and then called United’s help desk. United’s sales representative “blamed Lufthansa [A]irlines [with which United has a codeshare] and redirected [the] call.” Compl. at 3. Lufthansa offered a ticket for the same route for $3000. Mr. Firsov ultimately “followed their advises [sic] and purchased” a more expensive fare. Id. Mr. Firsov filed this complaint on May 1, 2025, alleging (1) false advertising, Cal. Bus. & Prof. Code § 17500; (2) violation of a regulation of the Department of Transportation (“DOT”), 14 C.F.R. § 399; (3) unfair and deceptive business practices under the California Unfair Competition Law (“UCL”), Cal. Bus. & Prof. Code § 17200, and under the Federal Trade Commission Act, 15 U.S.C. § 45; (4) violation of the Sherman Act, 15 U.S.C. § 1; and (5) negligence. Compl. at 4–8. On September 22, 2025, United moved to dismiss pursuant to Rule 12(b)(6). On September 29, 2025, Lufthansa, specially appearing, moved to dismiss pursuant to Rules 12(b)(1), 12(b)(2), 12(b)(4), and 12(b)(6). On October 20, 2025, Mr. Firsov moved for leave to file an amended complaint to “fix error [sic] in breach of contract claim and add claim for breach of Covenant of good faith and fair dealing.” Firsov Mot. at 2. II. UNITED’S RULE 12(B)(6) MOTION “A motion to dismiss under Federal Rule of Civil Procedure 12(b)(6) for failure to state a claim upon which relief can be granted ‘tests the legal sufficiency of a claim.’” Conservation Force v. Salazar, 646 F.3d 1240, 1241–42 (9th Cir. 2011) (quoting Navarro v. Block, 250 F.3d 729, 732 (9th Cir. 2001)). While a complaint need not contain detailed factual allegations, it “must contain sufficient factual matter, accepted as true, to ‘state a claim to relief that is plausible on its face.’” Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009) (quoting Bell Atl. Corp. v. Twombly, 550 U.S. 544, 570 (2007)). A claim is facially plausible when it “allows the court to draw the reasonable inference that the defendant is liable for the misconduct alleged.” Id. In deciding whether to grant leave to amend, the Court considers the factors set forth by the Supreme Court in Foman v. Davis, 371 U.S. 178 (1962), and discussed at length by the Ninth Circuit in Eminence Capital, LLC v. Aspeon, Inc., 316 F.3d 1048 (9th Cir. 2003). The Ninth Circuit in Eminence Capital identified several factors to consider, including (1) undue delay, (2) bad faith or dilatory motive, (3) repeated failure to cure deficiencies by amendment, (4) undue prejudice to the opposing party, or (5) futility of amendment. Id. at 1052. A. Sherman Act Claim Mr. Firsov alleges that both United and Lufthansa, using a codeshare, “colluded” to restrict sales at the advertised price, and “forced” him to purchase more expensive tickets. Compl. at 7. United argues that the claim must be dismissed because Mr. Firsov fails to allege an unlawful agreement or a cognizable antitrust injury. United Mot. at 5–6. Mr. Firsov responds that he has alleged facts showing that “defendants violated Price-fixing: Agreements among competitors to set prices [sic], which is considered a per se illegal violation of Section 1 of the Sherman Act.” Opp. to United at 5. Section 1 of the Sherman Act provides that “[e]very contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce among the several States, or with foreign nations, is declared to be illegal.” 15 U.S.C. § 1. A section 1 claim requires: (1) “an agreement, conspiracy, or combination between two or more entities”; (2) constituting “an unreasonable restraint of trade under either a per se or rule of reason analysis”; (3) that “affected interstate commerce.” A section 1 plaintiff must also allege facts showing actual injury to competition. In re Dynamic Random Access Memory (DRAM) Indirect Purchaser Antitrust Litig., 28 F.4th 42, 46 (9th Cir. 2022); Kendall v. Visa U.S.A., Inc., 518 F.3d 1042, 1047 (9th Cir. 2008). Dismissal is warranted for two independent reasons. First, Mr. Firsov fails to plausibly allege an unlawful agreement between United and Lufthansa. The complaint alleges only that representatives of each airline “blamed” the other airline and that Mr. Firsov was eventually forced to purchase a more expensive ticket. Compl. at 3. Such “conclusory allegations of parallel conduct will not suffice . . . ‘to raise a reasonable expectation that discovery will reveal evidence of illegal agreement.’” Solyndra Residual Tr. by & through Neilson v. Suntech Power Holdings extent that Mr. Firsov alleges that the unlawful agreement in this case was United and Lufthansa’s codeshare, that agreement cannot form the basis of a Sherman Act claim. DOT has expressly granted antitrust im

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Sergey Firsov v. United Airlines, Inc., et al., (N.D. Cal. 2026).

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